Both: Just had to quit my music tech lv.2 course simply due to the impact it's having on my health. It sucks because I was halfway through when everything started getting a bit ballistic, and it's difficult to absorb information when you're feeling like shit and your mind is elsewhere. On the other hand, it's kind of a relief as I'm not having to worry about it too much... and they've given me the opportunity to still receive a lesser qualification since I've done a fair bit of work already, which is really kind of them.
I feel bad about it, but if I'd have kept at it with my current state of mind I'd only end up failing. Which ultimately, is worse. I'd rather bow out and then resit the course than fail it to be fair.