My i9-10900KF is holding up well, so I have no real reason to upgrade. Before that I had a i7-6700. I could keep going back 35 years, but generally, when I feel like I need more performance, I upgrade. Historically that has been every 4-6 years or so for CPUs.

You have to develop discipline like a muscle. Put the devices down and take a walk. Learn to just sit and daydream for 20 minutes with no stimulation. Practice it and you’ll realize the devices are pretty boring and you were replacing your own mindfulness with endless videos and pointless entertainment.