Congrats and don't sweat it! My first deer was a doe and I remember it like it was yesterday! The big bucks will come with experience! Savor the memory. One button buck does not a deer herd make! I'd much rather see new hunters, especially younger hunters take a button buck or doe than a booner! You see these pics all the time of 8 year olds taking their "first deer," 140+ bucks on more or less canned hunts! That's NOT hunting!
Again, congrats on your first trophy!