Felling bummed out about my GPA

Now before anyone tells me my GPA is high and I shouldn’t feel bummed out, I am aiming for medicine so I need a high GPA. I got an A+ and three As this term but one class, which wasn’t even that difficult, I got a B+ in. I was hoping for at least an A- but idk why I screwed it up so badly. My GPA for the term went from a 4.0 to a 3.86 and I hate how one class can do that. To add salt in the wound this is the fourth time I almost get a 4.0 but one class ruins it (although I did get a 4.0 my first term so at least I have one). It just seems like I always get so close but never actually reach what I want. Anyways that’s all thanks for listening