Hi Peter,
I just finished my exams last week and I know what you're going through. Revision period is AWFUL.

I think it's especially hard on those of us who struggle with depression. What helped for me was planning what I was going to do right after the exam, like making a coffee date or deciding to watch a specific movie or even just taking a much-needed nap. It helps to reward yourself for all the hard work you're doing, I think. If you're worried about what people will think about your grades, remember that you're under no obligation to tell them. I tend to come up with a lot of vague comments like "Oh, it was okay, I'm just glad it's over" or "I'd really rather talk about something unrelated to school, I've been in revision world too long!"
Good luck on your exams.