I always suck in some way so I am always improving. But a better question is "what do I enjoy?" and that is infosec stuff and they actually pay me to do it lol.

Even if you are never good at something, you should enjoy the things you suck at instead of be miserable trying to be good at things you don't even like.

I was very good at biology, it was effortless and natural. But more school and messing with people's meat was all too gross.

I suppose the sweet spot is when you are tolerably competent at something and you also really enjoy that thing.