OH. That was a joke. (note to self: I'm supposed to laugh here, or at least smiley.) Hahaha. (Note: no sarcasm intended)
I am saying you shouldn't dismiss the possibility of there being another cause to courage. Hence your semantics should reflect that. It's true that "A is caused by X" isn't synonymous to "A is ONLY caused by X", but very often it comes across as the latter. (read: some people tend to misconstrue meanings, they like making strawmans)
There's another possibility. You may simply be inspired to achieve a goal, and though there are some things you fear, you overcome them nonetheless. In this situation you feel energized to move towards something, instead of moving away from something.
Forgive my miniscule knowledge of philosophy, but I think you can understand this motivation thing more if you read up on concupiscible passions vs irascible passions (Thomas Aquinas was one of the persons who explained this.)
The way you constructed your argument came across as "I am (subconsciously or consciously) afraid that this will happen to me, so I will be courageous and do X as a form of prophylaxis." While this statement is no doubt true (at least from my experience), it is not the only truth.