When did your parents, teachers, bosses, co-workers, friends, children and EVERYONE sell you the idea that you have no choice but to do what they tell you?
What is that for you? Study a subject you hate, take a job you're not interested in, break off a great relationship, marry a person you don't really like, work late every night and weekend?
Guess what? You ALWAYS have a choice. Infinite choices in fact. This is a free will universe.
So remind yourself. Next time you feel trapped ask "What choices do I have?" Then notice whatever option feels lightest and ask more questions about what it would take for you to create that as your life.
Of course, it may end up being exactly what other people told you to choose in the first place. But you'll feel differently about it because it was YOUR choice.