Chronic depression survivor since 1989 here. If you are not doing well, looking for a reason to live might be way to big of an ask. Instead try finding a reason to not die. This is not wordplay or trying to be cute for the internet. Sometimes you just need an excuse, any excuse, to keep going. It is all about surviving the unbearable moment.
I remember when Mikey Rourke had his comeback. He talked about locking himself up in his closet with a gun to his head but not pulling the trigger because nobody would take care of his dog. It doesn't seem like much, but sometimes it is enough to get you to tomorrow.