What's In My Big Question For Me

What's in it for me with my big question is that not only is it something I'm interested in but I want to major in engineering when I go to college. As I get closer and closer to senior year I have to start thinking about what I want to do and try and find out what I'm actually interested in. So as I really enjoy engineering I want to explore which kind because there is so many sub fields to engineering that I feel like this question well help me understand more what I like/want to do.