I have many airsoft guns (use to airsoft). I "own" 2 actual firearms. At least in america i'm pretty sure if you have mental issues you cant own a gun. Also depending on your state (in america) it can be pretty hard to get a gun but where I live in georgia all you have to do is sign some papers lol. (background check of course)
Sorry but it was kinda hard to reply to this because of the way you wrote it.