Sorry dude, no sympathy from this end.
19, gun, growing, living with someone with warrants, I mean comon, all the adults in your life were NOT lying to you. You knew all along what you were doing and somehow thought you were above all the htings that you heard and "that won't happen to me".

If I get caught, I know what the laws are, I made myself aware and have protected in all ways possible and ready to accept the consequences.

My genuine advice:

Wear a nice suit, better have a job and start volunteering at the spca or something like it. Show that you are a contributing member of society and NOT what you appear to be.

I don't mean to come off as a dick but there is a serious problem with youth over the last 10 years and it's only getting worse.