This is a very heartfelt and deep emotional response. It seems very manipulative to trick you into doing things their way. But do you know something, these feelings you have may not be so unusual. You've described them so eloquently and with remarkable precision. Many people have attitudes like those you've encountered from your parents. So called 'friends', who seek to manipulate, but maybe they never fought back in their young years or recognised how they were treated. So they think its OK to treat others like that. It sounds really painful and having missed out on your classes. I hope you heal from this, and resume living on your terms.