I've just finished my first year of undergraduate engineering at Boston University (originally intent on becoming a mechanical engineer with aerospace concentration for electives) with a respectable low A or high B GPA. I can grasp the material, and have understood the lectures but tend to choke on tests and do stupid things like do wrong problems on homework since my eyes are so terrible. Regardless, I have a deep and profound interest in physics and mathematics, and enjoy the problem solving that comes with engineering--the overall feeling of proactively getting things done, managing time, etc, but I've recently come to the realization that I'm not entirely sure what a mechanical engineer's job on a day to day basis consists of. I've begun to have slight doubts about engineering after a physics professor of mine saw some potential for me to pursue physics because of my ability to grasp concepts in regards to some issues in modern physics. Also, the idea of advancing physics and the overall wealth of knowledge available to humanity as a whole is incredibly appealing. I realize the programs are much different, but I'm still only transitioning into a sophomore position, and could make the switch without too much difficulty. I'll most likely stick with my engineering program and just try to learn and keep up with modern physics, but I would love advice if anyone has been in a similar situation. Mostly though, I would be greatly appreciative if some engineers (mechanical, if you're out there) and physicists could give me a little glimpse into what their daily routine is like--so to speak.