Also if you don't want to work you can apply for food stamps in your county or I would suggest you better go to college and get government financial aid like Hope credit and FAFSA and get some degree and be at level where you don't need financial help that is the route I will take if I were you based on what level you are.
Also you will have better access to small business loans and cheaper mortgage based on your credit history and what you want to do.
There are lot of US citizens and GC before you so don't think having that will solve all problems.