https://www.chess.com/stats/daily/chess/optimissed
Not sure if this works but you might see where my rating fell from 2083 to 1962 in three months leading up to January 2018, starting when my father died in Sept 2017. These things happen, There are often things that take our minds off chess.
How to recover from this slump?


You're playing 157 games. Cut down to 40 and if that doesn't work, to 20. If that doesn't work, to 10. Then you'll improve.
Bring it to 1000 Then You'll only win games on time
100 is no big deal
10 Games HAVE ALL THE TIME YOU NEED
Jesus, man. Get those damn numbers out of your head. If you're playing just to show off some random numbers that do not matter, and if that is all you care about, you need to stop playing. Simple as that.

You're playing 157 games. Cut down to 40 and if that doesn't work, to 20. If that doesn't work, to 10. Then you'll improve.
Bring it to 1000 Then You'll only win games on time
100 is no big deal
10 Games HAVE ALL THE TIME YOU NEED
It depends on the standard you're playing to. Over about 1800, it gets harder because most players are capable of punishing inaccuracies. Over 1950, harder again because at that level people can play quite deep traps and things, so you can't make instant moves and will want to look at a position more than once before moving. Over 2150, really tough and even ten games can be far too many, unless you're constantly playing. I prefer a maximum of 8.

BTW you could stop playing once you lose one or two matches in a row
This is what I usually do; manage to do 2+ win streaks, and stop once I lose

Jesus, man. Get those damn numbers out of your head. If you're playing just to show off some random numbers that do not matter, and if that is all you care about, you need to stop playing. Simple as that.
For me ratings never mattered in the sense of look at me I'm a class e or d player, kinda silly. I thought a gradual climb of ratings reflected a positive win to loss ratio. Watching your rating plummet and obviously seeing consecutive loses which is really the same thing should be concerning. Would it be better if we didn't use the words "ratings" & we used "losses" or "percentile"? It's all the same.
I stopped playing games, no longer enjoyable. Perhaps spending too much time looking for "brilliant" moves. Seems like the more I try to improve the worse I get.

On lucky days I'm not cursed the others I'm cursed
https://www.chess.com/stats/daily/chess/johnworldesen2200
I underestimated myself
I know. I think you just have to start no more games, take every opportunity to accept or offer draws and so on and get the number of games down to a reasonable number. It isn't abnormal to take ten or 15 minutes on a single move and in fact I have spent two hours on a move in a difficult position, before now. If they are three day games and you spend 5 minutes on each move, that's 800 minutes every three days or realistically, five hours per day. Otherwise you will probably lose more than you win. So just do your best and reduce the games, and try to spend at least a minute on every move, to try to make sure you don't blunder.