I would not get to worried about it. You want a 5wt floating fly line. Scientific Angler, Rio, and I really like Cortland any of these lines will do. I suggest buying the best line you can.
Little poppers and some small wooly worms and woolly buggers will start you off.
Learning to cast will quickly increase your enjoyment. Here is a link design to help you learn to cast. Watch the essentials first and then the steps for teaching yourself.https://www.youtube.com/channel/UCxly4y6kgzSrerWEnGHUWBA
I hope this helps. IF you find yourself around Baytown let me know I can help you get started. Plenty of instructors around the state and a lesson is usually worth it.