Stuck at 1400-1600 rating
silly, if you did sillmans end game genuinely you would get low 2000's on just that book. Assuming you learn the content deeply
I have memorized many openings, then I keep my consistence in solving more tactics puzzles while play more with those higher level players. It helped me to reach 1600 above and minimised my blunder moves a lot.
opening theory is a waste of time bro you probably don't have the work ethic to study that hard I don't even have that motivation level.
brush up on the basics.
Try going through lichess training section- or chess.com's.
you might be surprised by what you have forgotten, in terms of tactics, and potential mates.
Dear JETINATE,
I am a certified, full-time chess coach, so I hope I can help you. Everybody is different, so that's why there isn't only one general way to learn. First of all, you have to discover your biggest weaknesses in the game and start working on them. The most effective way for that is analyzing your own games. Of course, if you are a beginner, you can't do it efficiently because you don't know too much about the game yet. There is a built-in engine on chess.com which can show you if a move is good or bad but the only problem is that it can't explain to you the plans, ideas behind the moves, so you won't know why it is so good or bad.
In my opinion, chess has 4 main territories (openings, strategies, tactics/combinations and endgames). If you want to improve efficiently, you should improve all of these skills almost at the same time. That's what my training program is based on. My students really like it because the lessons are not boring (because we talk about more than one areas within one lesson) and they feel the improvement on the longer run. Of course, there are always ups and downs but this is completely normal in everyone's career.
If you would like to learn more about chess, you can visit my Patreon channel (www.patreon.com/Bgabor91), where you can learn about every kind of topics. I've just started this channel and I'm planning to upload 3-4 new videos per week.
I hope this is helpful for you. Good luck with your games!