I think that's something we all can relate to. We all have been pressurised to study by our parents even if our interests lies elsewhere. They are not able to understand our point of view but i think this is not their fault as well because this is something which they have gone through as well and now they think thats the correct way forward.
see my parents didn't pressurise me to study. but i will tell you my story that i always wanted to study so i have gone for that goal and achieved satisfactory results too. I think first you need to analyse what your goals are. Is you think that you could handle both study and goals that's well and good. If not try scoring good in studies while pursuing your goal and show it to yours parents that your goal can also be an option besides studies but you really have to try hard for it because goal are always hard to achieve
It's difficult to answer that without knowing what are your goals and why your parents' expectations is a hindrance to your goals. Can you elaborate on that?