At night after I finished my work on my PC I find it hard to just turn it off and go to bed so I usually end up playing some games or going on YouTube instead. How can I end this habit and make myself go to bed earlier?

I know what I try to do for myself is set parameters. I will set a focus timer that will be for an hour and at the end of that hour I am done. And with my computer and my phone when I use a focus timer I can block other apps and stuff so I don’t tend to engage. I put my computer on do not disturb mode and I stand up and walk away.