Now the fun begins . . . Forget the flamer. Again, practice with a friend, first as a target, then opponent. Try being on the same teams so you don't die. Pyros are good with rockets, as they don't need to reload.
Soldiers are fun in water, but try other classes both as and against.
Create a game of 2fort, and shoot the pillars on the bridge while side-stepping. Except they have grenades . . . Flamers have good range, but those snipers in well are just a little too far away . . . Now, my controls. Don't be a newbie and use default.