I haven't got a chip on my shoulder about it. But I have tried all my life and always ended up distinctively rubbish or very average after trying very hard.
Never been good at anything. I'm piss poor at so many things, despite effort. I'm not down about it, I get my tone might read that I am but I'm not! 
I'm good at 'gift of the gab' in getting out of tricky situations. For example, I got caught shop lifting at 17. I had to go back of the store in a small office space and give them my name and address. I didn't lie about those details. And made the security staff feel as if I was the most honest and apologetic person, told them I'd just lost my job from chronic illness and just wanted to feel normal again, and when I'd sweetened them up enough, I pretended to have a fit (they called an ambulance, next day rang me to tell me I was welcome back anytime and they were so so sorry).
I am not 'proud' of it, although I find the calculation impressive. I'm ashamed of that but that and similar events (of a non illegal nature!) are the only things I have to show for myself 
Never been good at maths, sports, music, singing, drama. Although I enjoyed most of all that.
Anyone else similar?