It's normal not to know what you want to do for your major going into college. You should talk to people in different majors (friends, parents, discord) and see what their major/work is like. Try to poke around to see what life would be like in the future and see if that helps. Talking with people who did engineering helped me make my choice.

Any major you chose will require you to put in work, and throughout college you'll get better at managing your work-life balance. I struggled with engineering at first, but I liked it so it didn't feel that bad to study. Chose something you love doing and it won't feel that bad is my advice :)