I’m in a very similar situation (trying to hit 1800). I’m trying to focus on getting a playable position out of the opening, minding my blunders, and king safety. Of course there’s no area that I couldn’t stand to improve upon but that’s my main focus at the moment.
I just hit 1800 this past week, almost got 1900 but started to lose. But when I start to lose, I start playing the computer at a hard level which shows my weak points. Helps me avoid blunders and defend my pieces better.
I forgot to add as well as playing the computer, watch the top players play as well. I have heard people say read books but I just don’t have the motivation too but watching others game play is as good as reading book.
I was very recently a 1750 in blitz 3 minutes but I dropped to 1680.Can you people give me any idea's?