No, they're not right.
Even though we are all being told that we can do anything we like, it is a well known fact (and rather obvious one i would think) that only a small percentage of us will make it.
You dont actually have your own goals and dreams, you are living up to the societies goals and dreams. Same goes for me and many others.
The societies goals are - be rich, have tons of money, have big car, be beautiful.
In order to do all of this, you need to educate yourself, so going to university - being someone in society is not acutally your dream, but societies - you're only trying to live it.
So, no. Small percentage of us will make it - in the reality (depending if you agree with Durkheim or Marx) we all should and do have chances to succseed, but the society will stop us from getting them.