Finished High School, flunking college, now what?

Hey guys, I'm an 18 year old male and did real well in high school, however, ever since i started community college (i wanted to get my general credits out of the way before i spent money) i started ditching cl and not doing so well. i was put on academic probation last semester and now im flunking this semester so i most likely will be suspended a semester. i don't really know what i wanted to do, and it's hard to study when you don't know what you want to do. i train mixed martial arts, and im looking to fight but i have to have a steady career first. what should i do? what kind of careers are offered outside of community colleges? i was thinking maybe medical istant? PLEASE HELP!