Someone reassure me?

I have this uneasy feeling where things just won't go as I hope. For example: academia.

I hope I did okay on the Pharmacology exam. And Virology and Pharmacokinetics just don't seem to be getting impressed in my brain.

It was bad enough one of my colleagues approached myself and two others and asked, "Did you guys get the email for Rho Chi (Honor Society)?" And we all just sat there and were like... .... And he responded with "Oh I thought at least one of you would get in it." And we responded back with "Nope just you!"

Sad. At this point, I just want to pass but still be able to be a great pharmacist. I don't want to be one of those horrible pharmacists... I just have to get through this. Someone reassure me?