What do you recommend to do when your Elo suddenly drops?

Hi guys!

I recently dropped from 1150 to 900 (even to 812 five days ago, but that was a big tilt haha) in 3+2 blitz and I really struggle to understand what's going on and how to deal with it. I was winning against 1200s and now I am losing to 850s.

I "study" openings, analyzing my games, doing a ton of puzzles and yet it seems I'm just keep getting worse. I understand it's probably a combination of tilting and implementing new principles and tactics as I learn which I guess may result in getting worse briefly, but I am on decline for over a month now... I also wonder if it's possible I play and learn too much so I got overwhelmed...?

I've read some articles and blogs about this, but nothing seems to work so far, so I wonder - What do you guys do and recommend when such Elo drop occurs?

You're burnt out, take a short break.