Identity in the Present and Future

I have never struggled with who I am in the present. The biggest lesson my mom taught me when I was young was to never let anyone's opinion of me affect my identity. Whether it's my strange clothes, my over-enthusiasm, or the way I use five twice as many words as I need to get a point across, I don't let other people's judgement of me change how I see myself, because I know that ultimately the only opinion that matters is my own. On occasion my mom has suggested that I do portray myself differently to please other people, but being true to myself is such an important part of who I am by now that I know better.
However, that being said, I struggle with who I will be in the future. My parents are both chemical engineers, and any non-STEM field is not considered to be a viable career path for me to take. When I told them I'd rather do something that I actually like, such as international relations, they said that it was more important to have money than to do something I liked. These expectations are hard to come to terms with, especially since my college fund is ultimately their money so they do have leverage in case I don't cooperate. I have always tried to live up to their expectations, whether it's in academics, extracurriculars, or sports, and so far I think I've succeeded. I just don't know how much longer I'm supposed to do what they tell me without argument.  Ultimately, I am happy with the person I am at this moment. I don't know what my future holds, but over all else I hope that I continue to feel the same about myself for the rest of my life.