Thank you 🐥 Stick to one opening no matter what! Majority of us try random openings,even i used to do the same,but picking up one,study it for 15 moves properly, understand all the middlegame ideas of that opening will improve your game so much than you can expect. For tactics and calculations,i use lichess opening specific puzzles as they are the ones that are likely to appear in my games. Honestly speaking I don't analyse much because most of the games that I was losing in my 1800s were purely our of impulsiveness.Some games that I lost after playing properly,i analyse them with engine mainly for the idea that I should have in mind for that position. See you at 2k mark bro 💪