Try to do so many apps per week, 7 or so is a good number, doing a lot sounds good on paper, but HR of different places talk and flooding with your resume makes you look desperate and therefore unemployable.
Create a schedule you can follow and try to have so much time dedicated to rest/enjoyment if possible, no matter how small.
I’m down to a soda/caffeine drink at most once a day, down from drinking two or more every day.