Schooling for kids?

ok i am 19 and i am worrying i have been in speiel ed my hole life i havw been out of high school 2 years now i am going to college i start cles in the fall i am thinking about backing out because i dont think i am going to be able to handle them i am just not good in school what other things can i do like what in life i work as a aout porter in a dealship i make 8.00 an hour i dont want that to be like for the rest of my life what else can i do