Here’s what i think…
Realistically speaking, taking level 1 at this time probably doesn’t benefit you that much, but if you are interested in finance, i can see there are potential benefits:
1) connect with other CFA candidates in the area and see what they do and their career paths
2) believe it or not, if you don’t have the time now to study, you probably won’t have the time when you have a full time job, so the saying of “focusing one thing at a time” doesn’t really make sense unless you plan to take the exams when you are jobless
3) studying CFA may help you with your undergrad classes especially if you are studying finance
I personally do not think grades in university is that important (as long as you pass and can graduate), but there are also other things you may want to do, such as getting an internship or going on exchange, both of which would be more benefitial for you than CFA L1 (IMHO of course!)
BEST OF LUCK
NANA