Unless my brother takes me and my grandmother in, I'm going to be homeless on tuesday. And I'm scared of being alone with my mind.
What do you plan on doing until then?
I'm going to find a temporary job somewhere, but we're going to have to sleep on the streets.
It is good that you are taking the initiative to get some work.  However, I know that being on the verge of being homeless is very stressful on a person.
I'm not going to order coffee at starbucks or anywhere. I hate those damn people.
I'm not sure I understand why you are bringing up Starbucks.  However, if you are homeless for the time being, there might be shelters in your local area that you and/or your grandmother can stay in until your brother is able to help.