Protip to anybody out there. If you're running on little to no sleep and an extremely high fever, don't try to run your game.
I'm running an online campaign on Roll20, and I - in my deluded, slightly feverish mind - managed to convince myself that I was fine to let the game go forwards, and listening back to the audio, it was a total disaster. I can't even remember half of what happened, only that I somehow skipped a whole bunch of my notes, destroyed the characterisation of a very important NPC completely and somehow moved on to something that wasn't supposed to happen for a long time? The game itself wasn't the best work I've ever done - far from it - but it's the fact that I managed to singlehandedly ruin everything that makes me really worried. I particularly worked on the NPC for a while, and he just ended up as some bootleg third cousin of what I was originally going for. The players assure me it went fine, but I'm a new DM and I don't exactly know how to recover.
What steps can I take to recover the campaign and get it back on track?