I think it is great that you were striving for med school. That is an awesome field to go into. I also do understand about having to enjoy your work. No amount of money is worth a job that will cause you so much stress that you have a heart attack. There is always a purpose to life because the Lord tells us that in His word the bible. I would encourage you to read the bible and pray and seek a relationship with Jesus. He died to save us from our sins. Hope this helps you and God Bless You!!!