I spent my last two dollars on tofu
Why tofu, of all foods?
Because I was too hungry to think straight and I didn't want to let two dollars go to waste
While tofu is very healthy and healthy food in general is good for you, I think you might want to try and manage your money a bit better.  Living without enough money is difficult though, so I understand the struggle!
It's fine, I can just find a job.
A job is probably a good idea, that way you can get money. It is hard to make it through life without any money.