I need help to accept that my dreams will probably never come true

I am 16 and until last year I was brillant at school and it gave me huge trust in my dreams. I wanted to be a journalist going to a very good college in my country then get in a journalist school. But now I see a corrupted system (maybe not the people that make it even if many probably are, but the system itself) trying to destroy ambition and/or willing, trying to make us weak physically and mentally because we don't count a lot, trying to live in coma for each second by taking months to other peoples. I also accept my level in school crashed, but I say that because of what I see in peoples lives. They are tired, supposed rich when they get payed and poor the rest of the time, they are sad, unfertile, don't take care of their childrens when they can have some, nobody listens to them and even when they yell how they feel in the streets they know nobody will listen and just yell at themselves how sad they are. Since the golden age has probably ended for now, I also see war, racism, hunger, fear, sadness, coming everyday from everywhere, but the only people I see having hope for future are those who want to doom it and corrupt the system a bit more. Does it worth being a journalist after hard work that will never be recognized, when the only thing you can use to give hope is lie and convincing people to join the corruption ? Does it worth being a journalist to be poor 29 days of the months, to become a soldier or a refugee, or more probably simply a victim of everything 5 years later ? Does it worth being a journalist when the only thing you can say is the world may become hell because of climate change, of war or anything else and suddenly hearing people say "cry about it" like if it wouldn't hit them as well ? I think even in the democracy I live in, the only differences with a dictatorship is that we are not arrested for our opinions and that we can chose the head of the same corrupted system. What do opinions that are all bad and different heads for the same system give us, except hope meant to be crushed ? Help (sorry if you feel the same as me now)