So there are two ways to figure what you could do and ace it:
1. Be the best at one particular thing.
2. Be very good (top 25%) at a couple of things and mix them.
Maybe you are too late to execute the first strategy. If you are looking to be the next Virat Kohli, you had to start by age 8 (if you are reading this now, well, it is kinda late). Or, well, since you do not know what is the ONE specific thing you want to do, you are paralysed by choices. Either way, you are stuck.
The second strategy is probably more achievable. It is superbly articulated by the creator of the Dilbert cartoon, Scott Adams, who said:
“Everyone has at least a few areas in which they could be in the top 25 percent with some effort. In my case, I can draw better than most people, but I’m hardly an artist. And I’m not any funnier than the average standup comedian who never makes it big, but I’m funnier than most people.
The magic is that few people can draw well and write jokes. It’s the combination of the two that makes what I do so rare. And when you add in my business background, suddenly I had a topic that few cartoonists could hope to understand without living it.”
The point is, make yourself so freakishly rare by combining two or more “unique interests" so that nobody can be another version of you.
Well, I know it sounds like a lame common perspective, but if you look around hard, you will see the successful ones had atleast 2-3 skills in the top 25 percent.