manawesome, i think you're from my batch
anyway, i'm partially color blind too. and the worse thing is i can't really confirm which colors i really can't see. like very light green and yellow, or very dark blue vs very dark purple. distance and lighting also plays a part -.- however, i have not encountered major problems in CBC lab sessions

it's true that the practical is individual, but you can still discuss with your labmates and TAs, no worries
to comment on CBC's coursework, i find it quite comfortable. lab sessions will be quite stressful at first (especially for organic labs), but you will slowly (or be forced to) get used to it haha. other than that, you just need to be consistent in your work. it isn't SUPER stressful, so don't worry. however, you should still expect some competition from the foreigners in CBC because they are really smart/hardworking. not that you shouldn't be friends with them because of this, but all the more you should mix around with them and work hard yourself

most CBC people i know, be it locals or foreigners, are very nice people (for my batch at least

).
if you need any tips or advice, you can also PM me for details

good luck!