Zach, what you have done is more than just kill a deer (although that is a wonderful accomplishment in itself). You have shown the initiative and the can-do attitude that gets things done in the real world. Add to that the hard-won ability to do the deed, and smack! Down he goes, the REAL work begins, and after skinning and butchering, you have fed your family.
Many people your age don't feel that they can do anything that big and important, which is sad. I am very happy that somewhere out there, a young man develops his opportunities, and can get the job done. That attitude, and the leap of faith that is your arrow, will take you far in life.
Walk a straight and happy path.
Killdeer