What is your opinion on me stealing from my friends mom?
Huh? Why did you steal from her mom?
I need to pay for my groceries
No matter your life circumstances, stealing should never happen. Her mom worked hard for that money, while you didn't at all. It isn't fair and if your friend finds out they might cut you off.
She is not going to find out and it's not my fault I'm poor. Screw her.
Just because you are poor, doesn't mean you need to steal and make others suffer. Your friend's mom worked hard for all of that, and how will your friend think of you knowing you took advantage of them? How about looking to food banks instead?