It is very expensive to change crypto to fiat currency. This is the biggest limiting factor in the cryptospace in my opinion. I would recommend trying your best to save it up as much as possible so that when you do convert it is a smaller percentage of the overall transaction. Sometimes fees can make it pointless to try to exchange. Another option is pooling money together with friends and turning it to fiat together. This would essentially accomplish the same goal. I know Venezuela is facing hard times at the moment. Keep your head up and don't get discouraged.