You're good at lots of things and not so good at lots of other things.  Every now and then, challenge yourself to have a go at what you're not good at.  Give it a go and you might expand your capacity.  Or you might discover...

"I can't!"  Believe you can't and you most likely won't!  Instead, get into a pantomime mindset and face your doubts with amusement and fun. So every time you hear "Oh No, You Can't!" say to yourself "Oh Yes, I Can!"  Believe you can...