You can invest or trade on market for double up your money!! Bitcoin price is now more dump and its in a support level just check it for a while and invest on a good coin when its start pumping you can make your money double in this way better analysis market.
It is not as easy as we think and never suggest to someone in this situation by seems promising double up the money. Because once they don't get it, they will blame everything, moreover if the price is decreased again. He needs money for daily life, not for long-term necessities.
...how can I make money off NFT's?
First of all, I am so sorry to hear about your condition right now, hopefully, you can have a better job and life again.
Actually, in your situation, it is too risky to put money in the NFT and also crypto investment or trade. Because we know that these two are risky and moreover currently the market seems to be very dropped easily.
I agree more with @jossiel suggestion to seek that kind of platform.
Or, if you are able to make some arts or other creative, you can check on the
https://bitcointalk.org/index.php?board=52.0Sometimes, there are some competitions or some services needed and probably you are suitable for the position or even can join the certain competitions