If you believe you can't, you're right. I don't believe I can't, even if everyone believes they can't. Because I know I can, I will.
It is quite acceptable to use your enemies' weapons against them. Preferable, even. Why bother re-inventing the wheel when there's wheels at hand? Underwear and computers are not necessities.
Potatoes, rice, onions. Those are necessities. Grow some. It's not rocket science.
It's just not giving up.