Whats a good practice regime? Piano & Trumpet?

well i know what you mean because i was the same way and what worked for me was to play a piece that i've played a thousand time over and over, each time more quickly then the last. i would recommend playing the chromatic scale like that too, slowing down when you reach notes that could be harder for beginners, like high c, and make sure you hit the note before going to the next one. you have to practice bottom line, almost everyday too. oh, and also just try to improv solo to a random beat too. it might be frustrating at first, especially if you don't have a friend learning at the same pace but just keep your eye on the ball. you'll be good before you know it