Here's what you need to get over yourself:
You need a great .22 <--- don't skimp here, this will probably be your favorite firearm.
You need a varmint rifle 22-250, maybe .223
You need a deer rifle .270 30-06, whatever
You may need several shotguns, dependent upon how you roll If only one, make it a 12 gauge. I personally think you need a 20 gauge also, but that could be greed.
You may feel you need a pistol for home defense, etc. You need a father figure far more first. Chances are quite decent that in this day and age the ONLY gun you bought is a pistol, probably an auto. That means you need training and are probably foolish on this whole gun-thing.
I have a revolver, it's my only pistol, I gave the rest to my little bro. Model 29 smith, .44 mag Med. barrel. I need nothing else. That is what I went in harm's way with, that is what I would defend with, not that I honestly give it that much thought.
You need the above shit to be semi-decent happy as a gun-owner.