I'm not qualified to answer this but as long as Danny Rensch doesn't notice, I think I'll be okay.
1. Play a lot consistently (Practice breeds improvement and more natural judgement)
2. Play long time formats (Classical, Rapid, Daily, and Correspondence Chess will give you more time to think and develop ideas before you move. It's a lot better for getting good when you can see all your possible moves against all your opponents possible responses. Later on, you'll be able to go to shorter time controls and if you can learn clock management paired with your developed sense for the board, you'll be unstoppable.)
3. Develop an opening repertoire (If you can find lines in specific openings to play and develop, you can make things more accurate for yourself and guarantee better chances out of the opening.)
4. Read, watch, listen (Books and videos can teach you ideas you likely never even considered but now can try against opponents.)
5. Study famous strong games and matches (Learn from the greats and find analysis that show why what they played was good and where they messed up. It could help you learn to have a master mindset. A wiseman once said, don't bring things down to your level but work yourself up to great levels.)
6. Try tactics and puzzles (This is not the best way to learn in my opinion but these can give you better sense for tactical tricks and positionally best moves. I especially recommend experimenting with different variations in custom puzzles to learn principles and concepts.
7. Have a mindset of a champion (If you want to get good, think of yourself as good and work to prove that point. Get off your lazy chair and show the world you are good at chess and face opponents with the will to win. Psychology is either unreal (Fischer's take) or crucial to winning.)
8. Find if your a positional or tactical player or both (If you enjoy long drawn out and complex positions that grind down to endgames where draws or slight advantages decide the fate of the game, try and learn positional play, if you like sacrificing pieces or playing unorthodox moves and interesting gambits to develop, attack, and create dynamic counter-play try and learn tactical play, and if you like both, then don't be afraid to look at the board and analyze first as one kind of thinker and second as the other depending on your choosing and then strike.)
8. Feel the board (I don't mean this literally though it's your choice my guy. Morozevich said that he believed Carlsen had the best 'feel' for the position on the board in any given moment. What I believe this means is the almost gut knowledge of what is going on overall and how to work it to an advantage for you and a disadvantage for your opponent. It's a difficult skill to master as humans will always overlook something but if you can get the feel for the board, you can learn to always play for you and against your opponent.)
9. Play and learn from stronger opponents than me (If you play even just Candidate Masters and learn from their play, you can get a lot better. Go out and find strong opponents to challenge you and harden your senses. Right now the famous FM Tani is constantly playing older IM's and GM's and while he loses a lot, he's learning fast and getting his IM norms in line.)
10. Find a strong rival (If you have a rival that is strong and better yet a bit stronger than you (uh oh!) you will have the motivation to learn and grow and to beat him and that will take you higher.)
11. Analyze lines (When playing, look at the different possibilities from your choices and your opponents choices and coming out of your opening prep, remember the unique quirks of your opening choice and play to control the board and attack your opponent.)
12. Analyze your finished games (If you played a game you find to be good whether you won or lost, sit down and analyze what happened and learn you own strengths to develop and your own weaknesses to correct. You can also not your opponents new ideas that you may want to try and his flaws to avoid. This can only help you learn about yourself and grow.)
13. Be patient (Mastery is a process of development so record your progress and enjoy the journey instead of blindly fighting to become a great player immediately.)
14. Play in tournaments (Tournaments can be a good way to grow because you have a competitive setting where you are going to want to win and show your the top player and that means, you are motivated, and then you can learn from the many games you may play there.)
15. Learn time management (Whether you are playing shorter time formats or you're trying to reach time control in Classical, learning time management is important. Try and keep your opening time short and concise playing your memorized line as long as possible and quickly since you know it works. In the middlegame, take your time to find best moves and tactics to gain advantages going into the endgame. Now for all the time you may want to take in the middlegame, make sure to NEVER enter an endgame very low on time in longer formats and with your opponent high on time because this will stress you out making blunders harder to avoid and I speak from experience when I say that a lot of my winning games have gone to draws or even losses on time from this.)
16. Have a few crazy ideas (Alekhine's and the Dutch are not top level openings but when your in that moment where you have to win or your out and your opponent doesn't get these, you should have them ready to lash out and look for a surprise and a win. Don't study these out as much as your main openings but know the main theory and how it works for you and your opponent.)
17. Know the point of your openings (There is a clear reason why some openings are better than others and that is because each opening creates different possibilities and some are simply superior. You can play whatever opening you'd like but if you don't even know the point of you are specifically developing your position, your not going to know where to go in the middlegame.)
18. Learn whether you play by emotions or calmness (Each of these actually is good in its own way. If you can channel your emotions to fight and slay your opponent, you can create onslaught on there position but the downside is that you can also collapse and mess up quickly and this type of player is best exemplified in Ivanchuk. As for calmness, it will keep you collected and focused which can help you see where your going and play the right moves but it can also lead to passivity and missing ideas that you might have seen if you had been 'turned on' and ready to kill and one player that very well exemplifies this is Fabiano Caruana. Learn how you play and do it to the best of its ability.)
19. Learn to play forcefully (Have you ever seen players like Dubov and wondered how in some games, it seems like his every move is attacking and beating down upon his opponent. Even Eric Rosen has shown this skills before. If you can play forceful and confrontational moves at the right times, looking for checks and attacks on pieces, your opponent must find a way to respond and that puts the game in your control.)
20. Be a watcher for your opponents own tricks (Tactics can fly out like an unexpected punch to the jaw and so you should always try to be on guard and look for strange and unexpected sacrifices and attacking moves that may knock you out and try to shut them down as early as possible.)
21. Be a good kicker (I have lost many a game from having to over-defend a piece or a pawn and having valuable pieces shut down from play. Learn to fight your opponents attacks that your supposed to defend from and work to kick out your opponents attackers and keep things moving in your favor.)
22. Bog down and immobilize your opponent (If you can do what I talked about in the last point to your opponent, you can really get a good advantage over him and if you can immobilize even one of his pieces (especially rooks) you can kills his piece advantage and take over the game.)
23. Study endgames (I need to do this more and so should you. If you are in an endgame where only 1 or 2 moves ensures a win and everything else loses or draws, you'll want to know those moves so always look to learn more endgames and how to properly play them and memorize them. Practice this and you may find a lot of your games that used to be draws are now wins.)
24. Know the rules well (Chess rules are pretty straightforward but if you can remember things such as en passant in a random position, you might have an advantage that you otherwise would miss.)
25. Be part of the community (Lastly, I suggest if you want to be good at anything, work with the community and become a part of it. Become a chess player and not just a guy who plays chess and you'll see the work pay off in the long run. Best of luck and I'm on this journey myself.)
You won't get good by playing exclusively speed chess (bullet, blitz, rapid, etc.)...
i have heard this saying for over years dramatically speaking and now i am on the verge of conquering the 2000 barrier solely based on the fact that i play a lot online and OTB speed chess