I agree that UT Austin is a great safety. With a safety that is this excellent, I am fine with your other applications going to reaches.
I agree with @1NJParent that you should concentrate on a few reaches. For computer science, I don’t understand why you have multiple Ivy League schools on your list. If you want to major in computer science, then apply to schools that are known as being excellent for computer science. MIT, Caltech, Stanford, and CMU are excellent universities for computer science.
You also might want to run the NPC on all of the schools on your list other than your in-state safety and make sure that you and your parents are okay with the results.