I don't believe it is possible to be "out of your league" unless, of course, you were to play with someone who does not share similar interests/goals in bdsm.

As it was said in earlier posts, there is such a wide range of play; from mild to severe and the best thing you could do is find and match up with someone who wants the same thing you do.

Your dominant friend is absolutely correct! Submissiveness can occur in any relationship, much of it subliminal.

Take heart. You will "find your footing"!