It is a personal thing. For me it helped that I had shot lots of deer and some elk and a few bears with a rifle before I took up bow hunting. That being said, my first year I shot the first legal buck that stepped in front of me (a little 3 or 4 point). It helped me to not shoot a doe, though. Having said that, there is no shame in shooting a doe (where it's legal, obviously). It definitely helps to get the first one out of the way.
It'll be harder than you think once you're actually trying to kill one of them. Like I said, no shame in taking whatever is legal.