Postgraduate studies

I have to start this post saying that my first career election was medical technology, but now I think of that election and I realize this election didn't represent me, in this time I found out that my vocation is related with the electricity and I want to do a technical course when I finish my career.
Well, I chose the career of food engineering almost one year ago (2016) and I think that my career is amazing. In the future I want to do postgraduate course food's sciences.
Well, I study in the university thanks to the state, I have the Bicentenario scholarship. this scholarship covers just the referential tuition and the university covers the rest of the tuition. So, as you can see I don't have free education as other people of my own economical situation and for this cause I think a lot if I should study a postgraduate, but I'm going to try to get into university of chile.
Well, the postgraduate course of food's sciences consist  in  training  graduates of high level of the field of food's sciences, to improve and accelerate the technological and scientific development as well as academic aspects and investigations.
Well, I believe that you can do what do you want, but if you don't get what you want you can never be happy .
Never give up and if you fail, you have to get up and try again, without  fear.