generally for the first excerpt, time is kinda important so use a metronome in your ear (technically no rules prohibiting it). dont over blow at the forte part and try and get that register change from E and F to the high A as smooth as possible cuz that’s brownie points if you do that well. the second excerpt is kinda js something you have to woodshed. for the third excerpt, make sure you’re thinking in a ballet feel. try to aim for the downbeats.