It seems like you need to finish school. I'm not sure what access to student loans and etc. you've got in Uruguay, but there's got to be a way for you to either

It seems like you need to finish school. I'm not sure what access to student loans and etc. you've got in Uruguay, but there's got to be a way for you to either go to school full-time and finish it quick, or for you to find a school in another country where you do have access to either loans or better quality education or a better wages. If the job isn't making you happy and isn't contributing to your future and you don't need it to get through school, then drop the job and put your effort into school and building things you like.