practice layering your tall t's so that they hang perfectly below eachother.
tie your knees together so that you get used to the feeling that sagging your snow pants down low creates.
seriously though, if you can get time on a trampoline or a diving board it helps a lot with your air awareness. don't be pressured by yourself or others to do super rad tricks, start with the basics. 360's, backflips, frontflips, etc... and get comfortable with yourself in the air and landing balanced. if you get that down it is a good foundation to build from.