Welcome to the forum, Brother Mike.
It is good that you are using your brain and weighing in on things. One thing I would caution you about though-these are big things you are thinking about, and deserve time to mull over.
The fact that you would find it necessary to ask others-people on this forum-what you should do means that nothing is settled. You have time. When you are young, you aren't able to see what's down the road, and the ramifications for decisions made today.
What you must concentrate on right now is your education. I can tell you that it is your key to the future. If leaving the WT organization means trouble with your parents and perhaps the loss of funds for further education, I would urge you to step back and look at all options. Will they be financially able to send you to college? Will they do this if you leave the teachings of the WTS?
I was "in" for over thirty years. I was determined, however, that my daughter would get an education and be able to support herself, as I had worked so many menial jobs and struggled to make ends meet. She really applied herself at school, went to a local college, and got a degree in Biology with highest honors.
I left the Witnesses, and went back to school. I got a degree in History, a subject that I enjoy and find fascinating, and just this year got a job teaching school. I am sixty-two years old. Yes, education IS the key to the future, and I understand that now.
Please don't make rash breaks with your family or deprive yourself of an enjoyable future through bad decisions made today. Make goals for your life, then be determined to meet them.
If your family is determined that you will not get an education due to the WT directives, then you must look at different avenues. I worked full time and went to school on the week-ends and took distance ed classes on line. It can be done-it just takes lots of hard work and determination.
Wish you the best.