Aww rough weeks there!!!
Honesty, there’s no magic one thing I do. Sometimes I look around and find ideas, flip through pattern books, things I have book marked, on here which leads me down many rabbit holes then I have new hobbies LOL
Sometimes I clean and organize my stash that usually helps because I can never get the craft studio cleaned!
Maybe the awaiting projects just aren’t doing it for you. Could be the time involved, maybe you need more instant gratification if they are more time consuming projects (like knitting, quilting, etc) Don’t be afraid to put them aside and start something new and maybe small that can be done in a day or 2 to jump start the creativity again!