My questions is, what advice would you more experienced, or anyone with advice that would help, give to me in my current situation?
I was about the same age as you when I started law school, and my biggest piece of advice is this: minimize your debt, maximize your experience.
It sounds like you already have the debt part figured out, and that's good.
By "experience" I mean legal experience via internships, part-time jobs during law school, summer associate positions, etc. The job market is still likely be very competitive when you graduate, and it's imperitive that you bring some actual skills to the table. Good grades or a good pedigree alone don't really cut it anymore (unless you're graduating from someplace like Harvard). Many firms don't really have the time or money to train someone, and they look for people who can hit the ground running.
Many law students, however, focus almost entirely on grades, and perhaps complete one or two lightweight summer positions. As a result, there are plenty of newly minted lawyers pouring into the market, but very few who actually know what they're doing. (You'll find when you get to law school that practical skills training is usually minimal).
You can give yourself an advantage by finding positions at busy firms or govt offices where you won't just be a gopher or researcher. I had an internship during law school that allowed me to write motions, work on discovery, and make court appearances (including a civil bench trial). Instead of doing it for one summer, like most of my classmates, I stuck with it for the rest of law school. That kind of experience will allow you to effectively compete against others who have gone to bigger name schools, or who have higher grades.
As far as being a prosecutor, take all the criminal law and trial advocacy courses you can during law school, and intern or volunteer at the local DA's office. Personal connections are very important for those jobs. Hiring at the DA's in my state (CA) is very bad right now, but TX might be better. If you can't land an internship with the DA, look into criminal defense firms. You'll learn criminal procedure at either one.
Without an LSAT score it's tough to speculate about which schools to apply to, although all the ones you mentioned have good regional reputations. If possible, take an LSAT prep course. They're expensive, but I think they're worth it.
Hope that helped, and good luck.