So I’m deploying for the first time and I’m having mixed feelings about it. I’m excited about it but I’m also nervous. Any advice?

Completely normal to run the range of emotions. Remember you are about to do something that you will tell your kids about. No one ever asked their grandfather about what they did in college but I'm sure he had a story or two about Korea/Vietnam/Golf War

Vast majority of troops sent overseas don't even hear combat, let alone see it. Bring a laptop. Extra hard drive for as many movies, TV shows, and games you can cram on. You will be bored.