Think of it this way....
Do you feel comfortable riding a bicycle the first?
How about driving a car?
or walking on a tight rope?
The point I'm getting at is all of the things I listed, the average person is going to feel uncomfortable doing them for the first time. You listed that snowboarding felt wrong for you because of the angles and stuff to turn, but you also stated right after that it is uncomfortable to you. Theres nothing wrong about it, it only felt wrong because it was something new to you. As with all the other things listed, after doing them enough times you will get comfortable with it.
But with that being said, snowboarding may not be for you. Did you ski before trying snowboarding? Because that also may be why it felt wrong since you'd be used to facing down the slope.