My advice will be for you to keep up saving that $12 gradually and as you are saving along the line take some course and learn trading, to me this is how to be financially free and trust me you will thank yourself for learning how to trade in the journey.
Was this a post to meet your subscription quota? Are you suggesting that the OP save exactly what he earns in a month?
I also looked up information about salaries in Cuba, and to be honest, I was very surprised that in Cuba, those who work in IT companies have high salaries. But even those who work for large companies have earnings that do not exceed one hundred dollars. Indeed, Cuba is a place outside the earth's planet. OP, I can only sympathize.