Joining military

I’m 23, I feel confused on life. I’ve been wanting to join the military for some years but have never got around to it. I took the Asvab years ago, and didn’t score well so I was discouraged and didnt want to try again. But this time I’m determined to want to retake. I want to do active Air Force. Anyone have any insight on how your military experience was ? Anything will help. I’m a little scared and nervous but I’d like to do something with my life.