Thank you all for your replies.
I earned it by writing reviews for the website of a friend. And yes, I'm a total noob, but my situation is very complicated because I live in a hellhole country and have no future, so I'm almost killing myself to make money and leave this hell as soon as possible. To your surprise, they made a total internet blackout for a week. Can you believe it?
Now my bitcoin cash has lost its value to 8.73$

but I'm going to make a few bucks more using that method I earned these so far.
What should I do now? Bitcoin cash seems to continue losing its value... and you said exchanging it is not efficient.
To be honest, I don't know anything about crypto exchanges...

The only way for me to get paid as an Iranian is by cryptocurrencies, so I can't have PayPal. Maybe there are some tricks to have one, but I'm not aware of them.