Plan B.

1. Get a check for disposable income. Don't ask for anything that would require a lawyer but get some money. You can't live without it.
2. Purchase a used 9mm semi-automatic and a number of rounds of ammunition. In Houston this should be relatively cheap and will be much harder to get when you are poor and filthy-looking.
3. Get the Subaru included and don't take the dog.
4. Camping equipment. Costs will be dramatically decreased by sleeping in the back of the Subaru. I see no downside here.
5. Don't pick a destination. Trying for a future is what you got you here. Blow all your money. Shoot at people. Have sex with anyone. Why not?
6. Remember who your friends are. This may be tricky, but you can do it. There has to be one of them, right?
7. See what happens.
8. Remember 2.