Many people have been through similar periods and overcome them, so asking around will yield plenty of anecdotal advice. And I assume you've read the old /u/lukeprog piece How to Beat Procrastination.
For me, regular exercise has helped for general motivation, energy levels, willpower--the opposite of akrasia generally. (How to bootstrap the motivation to exercise? I made a promise to a friend and she agreed to hold me accountable to exercising. It was also easier because there was someone I wanted to impress.)
Good luck. When you've got a handle on it, do share what helped most/least.
Working out has been too troublesome for me, but I do like endorphin boosts. Who needs drugs when you can get your brain to drug you for you?
Anytime you're feeling down, just do some kinda movement until your muscles burn a little then stop. It takes like 10 seconds of arm flapping or 3 crunches.
You can do it multiple times a day and keep a running tally to build up the initial affordance.
As an experiment, here's a thread for people to post about things they care about. Specifically, for things that are possible to contribute to, in some way, and preferably, to invite others to join.
Mine is buying and donating highschool textbooks to schools in the 'grey zone' of Ukraine (where the war kinda isn't fought, but few people would be surprised if it started.) I don't deliver them myself, though.
What's yours?