Well written! But I don’t have any answers for you.
I’ve been sick physically with one thing or another since birth and managed to keep my faith.
Mental illness is a whole new kettle of fish. I met someone with schizophrenia who made no sense when talking out aloud. But she wrote poems that were beautiful and eloquent about faith.
Every time anyone questions my faith now, I say “spend a day in my shoes and then you’ll know the meaning of faith”.
Take care.