BRO tell me how I become good at chess please

Do a combination of the following:
- Play games (especially longer format).
- Do puzzles.
- Do lessons.
- Have fun.
As a solid 770 I d say dont worry about your rating and dont burn out.
770 Elo and "solid" doesn't fit together. Under 1200, you keep missing the obvious and give away material for no other reason than not paying enough attention. You're an actual Chess player, when you begin losing games without seeing where you've been faulty before you analyse the game.
Believe he was being self-deprecating.

To get good at chess, it's an endless cycle of practicing chess with the right mindset (here, https://www.youtube.com/watch?v=ZfG6xQvx_38) and analyzing your chess games and fixing your mistakes for the future (here, https://www.youtube.com/watch?v=ZfG6xQvx_38).
Don't expect fast results. The more you rush, the more you will get frustrated and want to quit!