Well, you have a long way to go, but the journey will be fun. I'm mainly impressed that you chose an XD45 for your first gun. It was a great choice.
Now...slow down. Load 5 in a magazine and keep that front sight on the bulls eye through that long trigger pull. Smoothness is your goal, and the smoother you are the faster and more accurate you will be. By the time you get a thousand rounds through it, the trigger will be getting pretty sweet, and you will be shooting better than that at 15 yards.