There are a lot of things you can do. My Wife says that I am a perfectionist in this hobby and I have set it up that way on purpose. I always strive to build the next plane better then the last one and loving scale this can keep you busy for a long time. When it comes to flying find a plane that will do all the stunts then pick one and practice it till it's perfect then move to the next stunt. I always set up a challenge for myself and i make it hard so I have to put effort into it, nothing worse in my book then picking something that you know will be easy because soon you will lose interest in it.