Sorry, but I laughed about the relative who keeps having a go at you. I guess it all depends on your personality. Mine is a bit contrary, and that's how I ended up with a science degree.
I vaguely suggested I might study science, but what made my mind up was having family being doubtful about whether I could do it or not. ("Oh, why don't you do social science or literature?") So I was then absolutely determined to do what people suggested I couldn't.
Encouragement is good, but just let other people's doubts make you stronger!