In mania 7k this happens kinda oftem so when it happens for me, even when i just spend like 5 days without playing is that i play easy stuff. By easy i mean, if i used to be able to play 6 stars l, then i'll play the starrated where i can fc stuff, for me it is 3'4*. So just take a week to recover, slow down your pace, find some cool easy maps and slowly increase the difficulty as you feel like it with the days.
play easy charts you can S rank and be patient for a week and youll be sooo back. rush now and pain
copy paste link to my advicr thread lol free advice. ask questions (ideally mania, but ill try attempt other game modes) and itll be a big collection of advice and itll be organisied