First let me welcome you. Now, this is about as straight as I can put it. I can only speak for myself but I did feel some guilt and still do just a tiny bit every kill. I know what I'm doing and why but it's still there just in the back of my mind. But, as stated above, you will be so pumped soon after your first deer you will get over it as I do.
The bottom line is ANYTHING that is killed for food will endure some degree of suffering. The burger that you ate last suffered much more than a double lunged deer ever will tho. You are going to make some mistakes as we all have but the best advice I can give you is try to find a mentor to help you get started. Read everything you can get your hands on about not only hunting but the game anamal you hunt.
A good place to start would be the after the shot thread in "bowhunting"
I hope I didn't discourage you but wanted to give you all the info I could. Good luck and again, welcome