Everything I Thought I Was Is Wrong

I never really considered myself a good person since I don’t know what a good person is exactly. I contradict myself so much. I say i’m open minded but get upset when someone tells me their views that are opposite of mine. Thought I was self aware but then i’ll act on impulsive. Think i’m becoming mature just to do something considered immature. I thought I was pretty intelligent just to be proven wrong by something. Told myself I’m becoming more secure just to avoid conversations I don’t see worth talking about. I’m 25 now so I need to get my behavior in check but i always fall back into old habits and never truly improve myself.