I dont have much experience in guns. I would like to try to learn more, even if I dont buy one for several years. Where do I start? Do I rent a gun, then get the license, then buy a gun? What do I do first?

I would suggest taking a beginner handgun class. A carry class would start you with good skills and understanding, plus discuss all safety and legal issues. You should be able to rent\borrow a handgun at that time. Then return to the range to rent several. Even if others like a particular brand or style whatever you choose should fit your hand as well as your style. Caliber-wise there are several good reasons to choose 9 mm. Starting with cost per round and manageable recoil. There are many opinions online to consider as well. Personnel at the range would be glad to help you find something suitable. Don't get in a hurry or you might end up with an expensive paper weight.

A license is not required to purchase a firearm in Texas. Attend a NRA Basics of Pistol Shooting course. You can attend the class on line, but in person is better. I would rent or borrow before you buy. Watch videos on YouTube about firearms you are interested in Borrowing will be a lot cheaper than renting.