Is my dream possible?

Is my dream possible?

My dream is to Become a very good criminologist. This dream is dificult but with a lot of hardwork is possible. I have to do a degree and I need to study for 5 years. I can do it in Girona or Barcelona

But I would do it in Girona Because it is near my house.
I see this interesting career and I think if I Do That I'll have good results because i interested in the subjects Studied.
But I still have a few years I have time to Think About exactly what you'll do, Because now it is not clear