How can I get into the University of Texas at Austin?

I'm a junior, but I'm really stressing about college, so i want to know what requirements there are (gpa, test scores, etc).
Right now, i've done 2 and a half years of high school band, I have well over 300 volunteer hours. I worked a summer job at a chick fil a. I have pretty good grades, although every now and then i slip to a c. I'd really like to get into ut, but i hear its really hard to get into