Beauty School?

So all this time I've been so worried about making others happy that I haven't thought about what i want to be when i "grow up". Starting in 10th grade when i decided to go to the career cner I wanted to be a cosmotologist, and my parents wouldn't let me go for that so i went for health and kinda got sucked into going to college for physical therapy. I don't want to do that. i would absolutly love to be a nurse, but blood, needles, seizures, adn a panic disorder don't mix. I've though off and on during the past few about hair school again and didn't do it because i knew my parents would be dissapointed if i didn 't get a college degree. What's it matter? A career is a career! Neither one of them even went to college and none of my older brothers finished either. I want to do something like that too because its an interactiv kinda school, and i cn't handle sitting in classes all day so it should b more fun and its something Id really enjoy doing and i could make a living off of it! But why am I nervous about telling my parents?