"The second big issue with learning to fly, besides adjusting to the shift in musculature, is realizing that the movements of your entire body affect your movement. If you just let the rest of your body go limp in hopes of letting your wings power you, it's unlikely they'll do much, unless there's some serious magic backing up the form to let you get away with hovering."

She stretched each wing a little, continuing, "Momentum is your friend when flying; the air naturally pushes your wings upward when moving apace, which keeps the rest of your body up. Less true for bat-like wings than feathered ones, but still mostly true. That's about the only reason you'll be able to do anything besides fly once you've got it down pat."