No, in otherwords.... go for it. You are still young, a few years of univercity and hopefully you can do it.
Don't let any thing stop you.
It's best to strive for these things while you are still young. It means that if it does not work out, or it was not what you where expecting, then you can try to step back, refocus and replan.
The problem is the longer you wait, the harder it becomes.