Well then that’s maybe not the road you should take? Everyone can’t be everything they want to. The trick is finding something that you can do. Maybe you’re good with people, organizing, the arts, fighting, decorating, hiking, fishing, riding, reading, there is literally thousands of “valid” things out there.
Edit: I have known people who couldn’t add 3/4 and 3/4 and they were fine.
Worst job ever.