I cant seem to get my mind off this?

I put this one decal in my car that said police interceptor. It looked fake and huge and later found out it was illegal. I keep thinking I hurt my cars window by putting it there then taking it off. I don't know why I keep obsessing about my car. I have OCD but its a never ending battle with my cars perfection. It's literally killing me from the inside out. The car even got fixed up after that do it wouldn't matter anyway. I want to be a cop when Im older do that's what sparked my interest. Please help. It's one obsession after another.