No one can make you work at therapy (as in, "you can lead a horse to water but can't make it drink") but being a minor and having been in or had trouble of some sort it might be a better idea to "put up with" and get what you can from therapy than continue to rebel and ultimately cause yourself trouble. Yes, your parents and therapist pretty much hold the reins at the moment and struggling can make things much more unpleasant for you. Sometimes it's a better idea to go along with the current, enjoy the view for a bit rather than fight it. My husband's nephew ended up in a residential treatment place for nearly a year trying to fight the "system" with his rebellious behavior.

I wouldn't take "level of trouble" too badly. If you've been very unhappy or very angry or very anything, that could be your "trouble" and your therapist is probably trying to describe your situation rather than you personally. You are not trouble but have had trouble with getting along or whatever? It will get better. I had an older friend who use to tell me "It will be good for you in later life" when I was having a hard time or had to do something I didn't want to. Everybody has that kind of situation at some time or another, not just minors. Treat it like school; it's a necessary evil :-)