@Liwen Gu , thank you for all your help full advice. If I sell my mobile home, I don't think I'll be staying at my friend's house for free, but probably for a lot less than what I'm paying now. I would probably pay her around $300 or $400 a month, and no utilities, which would really save me A LOT in the summer! Right now I pay $540 a month on my lot rent, and then my utilities. In the winter there very cheap, but summer I pay through the nose for electricity. It's crazy!
As far as living frugally is concerned, I live pretty frugal at the moment, I know already planning to go a little more frugal. I've already quit getting Starbucks, which was about a $100 a month habit, and I'm getting rid of my cable and house phone, the latter of which I don't even use, but came with the bundle package, and that will save me an additional $80 a month. I don't go out to eat unless a friend invites me and says they are paying, I rarely buy new clothes, and I go to the movies maybe once or twice a month, and that's to the cheap theater where I only pay $2, and I don't buy any food there. Groceries run me anywhere from $200 to $400 a month, just depending on whether I'm stocking up on household stuff or not. I tried to stock up on food when it's on sale if it's something non-perishable or something that can be stored in the freezer.
As far as house hacking with roommates is concerned, when I lived in Massachusetts at my father's house after he passed away, I had several roommates there. I find it extremely difficult to live with roommates, especially if they're not respectful of your wishes. I currently have a roommate now, and older Vietnamese gentleman who is very respectful and is basically the perfect roommate. Unfortunately, he can only afford to pay me $200 a month, and I agreed upon that to help him out. He's hardly ever home, and when he is home, he's very quiet and respectful. It would be nice if all roommates were like that.
If I can find a house that had like maybe a master suite with a separate entrance or a garage that's been converted into a studio apartment or something like that, that would work out great. Even a basement that has been converted into one bedroom apartment or studio, although homes with basements are rare in Arizona. However, as @Julius Jon mentioned, with a credit score of only in the 500 and student loan and IRS debt, there's probably no way that I'll qualify for an FHA loan, or any loan, for that matter. Better for now that I just work on getting my debts paid off and getting my credit score up, and start saving money.