I think Amber would be doing much better as a shot girl back in Joplin.
Since Dreamboat Dave has kicked her to the curb, there's nothing to keep her in Tucson (except the stupidly generous Tucson taxpayers).

If she were to apologize to Crystal Naydean, for unpaid debts, for the bedbug infestation, and for her ingratitude, Amber could probably find a home back in Joplin in Crystal Naydean's government single-wide.
She could go back to pursuing her dream of a shot girl career, while keeping her day job in the convenient store.