for some reason i keep playing the same thing over and over again when i practice and try to make up new beats and stuff, but when i do i play the same thing, does anybody have any tips for me to stop this? its actually starting to make me mad! lol
maybe some high school level music to send me or something plz?

get on the internet, look up sheet music from various sources, print out, learnnn.

Just practice a whole bunch of different music. All different kinds, you can also work on sight reading and just different warm-ups and stuff like that. Buy books if you can't find what you need online.

listen to as much DCI and college music that you can get you hands on. get the sheet music for what ever you can go look online buy book, DVDS there are snugglebunny of things you can do to expand your horizons.