That happens in every family so don't worry. You are only year7 so your family puts a pressure on you (idk why but 98% parents do it). When you will be year9/10 they will think more carefully about your choices. Additionally, i would like to advise you that never do any course that you are not interested to. Because you can be really successful in your future job that you really love it, not because of money but because of you really see yourself there. On the other hand, normally people choose hundreds of different courses that they wanna study and they change their mind every year. So during 4 year school time think carefully and analyse yourself - where do you see yourself, in which part of the subject you feel more confident etc.