I'm sorry your car turned out to be a bummer. Your dad shouldn't laugh, since he looked at it to. It's not your fault. Buying used cars is difficult at best. I don't think that makes you a failure be any means. You just got ripped off. It can happen to any of us. Having things like this happen to us when we are depressed even seems worse. Take a step back and gather your strength. You can make it through this.