There is a saying, “Aim for the stars if you miss at least you hit the sky”
I believe everyone starts off their life dreaming, whether you are homeless and sleeping under an over-pass or you are the President of the United States.
When you look in to the eyes of a child and you see the spark and glow, thats untainted enthusiasm and ambition for life not yet mired by a reality of challenges and set-backs.
You seem interested in teaching. Think of who came before you, Sara Schinerer. There would be no Bais Yaakov movement without her, I’d say it’s safe to bet her dreams became a reality.
It’s healthy to dream, and to try as best as you can to turn those dreams in to a reality, but if you see that they cant be a reality for YOU at least you will be paving the road for the next person.