I am not a software expert by any means, but I imagine something like this could be possible one day.
What you can do in the meantime:
You probably know and maybe even use Script Player?
You could create yourself a playlist. You can use or make yourself scripts for long sessions. You would have script 1, an edging script. When you get too close, you would press your hotkey for the next script and script 2 loads. This one goes way slower, so you can cool down. Then you would either go back to script 1 or to another script, script 3. And so on and so on.
Creating scripts for something like this is really simple. You can load them for every video you want to watch for that session.