Isn't a C+ a 2.33? Did you get more than one? I don't see how else you end up at 2.5.
B-, B-, C+
Judging based on the fact that you have only 3 grades, I'm gonna go ahead and assume that your school (like mine...) probably offers FAR more credits in the spring than the summer. At GULC, for example, we have 11 credits of grades from fall, but 19 from spring (counting the two LRW credits which will be given towards fall semester at the end of spring). That kind of imbalance really leaves the ball in pretty much anyone's court. That GPA definitely puts you near the bottom, but that COULD change if you really get your stuff together in spring (and thus, improve your chances come OCI). Talk to your past professors and get some advice about what they found to be so erroneous: It could be something as fundamental as the "flow" of your responses, or something substantive that you missed.
In any case, I'm just a 1L as well, so I won't comment on job prospects or any of that stuff. I guess I'm just of the opinion that there's still a great chance for you to make a stride in the right direction so you should at least make the attempt. And chances are you can't withdraw and get refunded for this semester at this point anyway, so sticking it out might be worthwhile. Good luck!