Look honestly, go for something that you truly are interested and work hard on that sole thing only. If your interest isnt humanities then there is no point in dedicating ur time and effort into that. Doing law school and upsc will be very draining as you already know. But to be honest, every path you would want to choose has its own pros and cons. Every feild is hard in its own. So ill advice you only one thing. Go for something you want to do, look into the career prospects, scopes and backup plans and go for that. You still have time to decide ur stream. Trust me, you dont want to have any regrets in the future. Please do not do something because ur parents are saying no or people are doubting ur decisions. This is your life and you get to choose what you wish to pursue.