İlerde ne olmak istiyorsun?
- What do you want to be in the future?
Planında olmak istiyorum.
- I want to be in your plan.
See here what it says in Wiktionary. So, you were in the wrong about the meaning of that word.
... Oh, I just thought about one, and that is in fact I was wrong when I said the president ...
... is the wrong thing. It doesn't organize well that way. I don't know what does, but I know ...