If you are past the trainer, get yourself a 3D airplane such as the Reactor 46, Showtime 50 etc. Then set it to low throws and fly it as if it were a trainer. Then as you get more comfortable, increase the throws and go aerobatic or 3d, whatever you like. Some airplanes like the UCD are more 3D and cant be flown much sports like (i.e. you cant fly them fast or you will flutter the control surfaces and lose the airplane and more). Best to get a hybrid type

Ameyam