Second that.
As the boat guy, make sure people give you gas money.
Not sure what condition the lake is in currently.
However, I loved Laughlin. Going in as a guard guy knowing I won't get stuck there was an added bonus though. Theres been a smattering of new businesses opening up in Del Rio, so you've got that. Mesquite Creeks membership (if they still do it) is a must if you enjoy some brews with the classmates. 2 free beers a day when you go in. They've always got some fun events going on, as well as downtown Del Rio. Laughlin itself is meh. The golf course is flat and dry, but fun enough. Used to be good fishing in its ponds. Not sure if they have water anymore. Club XL is too expensive. Not bad once in a while though. They have some fun events once in a while on base. Just take advantage of what they offer. A lot of times they give you beer for volunteering for stuff which is fun.
If you can, get out of the dorms and get a house with some dudes from your class. Makes it way more fun in my opinion. Then, when several people in your class have houses, do a house crawl on a weekend. Great times. Austin and San Antonio aren't too far of a drive. Big Bend is, but I've heard it was worth it. Wish I had gone.
As far as UPT itself. The others have nailed it. Always be ready for whats next, but dont reach too far with the studying. I usually stayed in the flight room for 10-12 hours everyday even though we weren't on formal release for T6s, because I studied better there, and didn't wanted to be available for my classmates. Most of us did, and we had a super tight knit flight room. I'll second that boldface advice. I did one every night when I got home to have ready, and to help study. Like the others said, if you use your time effectively during the day, you can actually relax when you get home for the night.
Be a good bro and you'll be fine.