If you aren’t the best at any one thing, learn about as many things as you can.
I’m a poor artist. Through brute force I brought myself up to mediocre. I’ve never taken a writing class, but I can write okay. If I have a party at my house, I’m not the funniest person in the room, but I’m a little bit funny, I can write a little bit, I can draw a little bit, and you put those three together and you’ve got Dilbert, a fairly powerful force.
I agree with his view, so it must be correct. (That’s how logic works, no?)