Vlogageddon... which is doing all aforementioned vlog runs in a single calendar year lol.
It's important to keep the mental health. If you are suffering, burning out and/or wearing thin your content is going to suffer and your video performance will reflect that. Take a little step back, regain the thing that made you good at this in the first place and then hit it hard again later.
You don't need to do Vlogtober just because it's a thing... there are plenty of other things you can do as well. Make up your own thing. Go live behind a dumpster for a weekend and vlog it. That would make a really weird and yet incredibly captivating series of videos.
I don't encourage you to actually go live behind a dumpster, I'm just saying. A good vlog can be that easy to produce.