I'm a bit frustrated due to my experience with the trumpet today. For the first 3 days I got it, I practiced over 2 hours and saw great improvement, and was able to play the G under High C pretty decently (though it was tiring!), and I labored through playing every note from low C to that upper G several times for good practice and getting the notes. But today...I feel much worse. Maybe it's just the 'lip muscles' people refer to, but I can barely even hit the E at the top of the staff! It sounds like a pathetic puff of air! I don't feel sore like I did yesterday (yesterday, I was sore, very--first time getting sore there), so I feel like my muscles should be at the top of their game again. It doesn't really hurt so much to try and play the high notes, I just can't anymore. Also, the mouthpiece kept slipping off of my embouchure. Is this just a lack of muscle? So I played only an hour today, and much more lightly. It was disappointingly bad :/. But anyway, what steps should I be taking to improving my chops out of noobie-land? I've already got the harmony/ear/theory background set, I just need plain old chops, which I assume comes from plain old hard work, which is why i'm practicing so much. Am I doing the right things? Just playing a hell of a lot of notes every day? Scales/Long tones? Thanks.