I've already decided to go off to college, and take the scienceline to work with. I'm just very unsure if I can become what I want to become. My dream is to work in the field of particle physics, and I'm not sure if I'm capable of it (this is because I lack some skills in mathematics). I got an A in my physics exam, and a C in my mathematics (I got D in my head calculation). Is there any good ways to improve this, before I'm off to university in about three years, and how so? I hope I can become better in college, but the calculation is of course harder than high school, so if I lack some skills there, I might just also lack in college. Should I try to improve drastically, or should I just stay in my average way of calculating?