What I feel lost in life...I need help as a senior in high school?(10Pts)?

UT Dallas is local, so they will know your school's reputation. That 3.6 GPA could be very strong, if they know it's a tough school. I can see your enthusiasm is high. My advice would be to relax, you'll probably get in. If you are wait-listed, then go over to their admissions office and speak to someone live, emphasize again how much you want to attend, and why you think you would be an et to the university. Dress well. That kind of stuff makes more of a difference than most students realize.