HORSE SHOW HELP! 20 characters!?

okay so i dont have a saddle & i was told i need one. so what kind of saddle is cheap but a great saddle. Also what kind of saddle pad do i need. i have a teal saddle pad but i was told i couldn't use it...also what kind of helmet do i need i have a regular helmet and its blue but do i need a black suede one?