Where can I take my car to be repaired and be sure the mechanics won't intentionally screw something up on it to try to get more money out of me?

Been having a bit of a bad luck with that lately and I really need repairs but don't know who to trust.

Edit: knew I could count on Redditors to come through for me. You guys are great. Thanks so much everyone. I've got a lot to go on now and will be deciding soon.