Researchers have done randomized controlled experiments where they assign research subjects to either therapy or "waiting list for therapy" (placebo condition). People in therapy do better on average than in the placebo group. Of course, this statistical significance or scientific average doesn't mean that everyone improves with therapy or that some people in the placebo condition didn't also get better.

For myself and the people I know in therapy, it helps for reasons beyond placebo (I've tried waiting and seeing, it doesn't work for me) or faith. But it's definitely not a panacea for everything that's wrong with everyone. Perhaps you need to move towards accepting that therapy just isn't your thing. You've said repeatedly that you've made no progress and that it causes you to physically harm yourself, and you've also said that you're not open to trying to do therapy differently than what you've been doing. You might be one of the people for whom
therapy just isn't going to help.

Anne