Why oh Why

I believe in Jinxes. I believe if I say something WILL be great before it even happens, that when that day comes it will be pure chaos. I literally carry a piece of wood I bought at home depot..... What are some ways I can get myself to not believe so hardcore in Jinxes. There are times it affects my life. I don't believe breaking a mirror will give me bad luck or if a black cat passes me or stepping on cracks.... but this one in particular, idk...😕