I can’t do anything in peace anymore a voice in my head is acting like a novice questioning everything I think bringing up past mistakes I Don't know what I can do?

I can relate to that. Certain past mistakes can plague me from time to time. During those moments, it seems like there is a tug-of-war going on in my head. I do all that I can to just keep myself grounded. Although I'm unable to offer advice, maybe you'd like to tell me more about what you're going through? If you're willing to discuss this we might be able to process some of the things that are bothering you. Remember that we're always here to help by listening to what you're going through, any day and time.