Huh? That is as simple as not installing any games on your computer, using GPUs like Quadros if you do CAD, and using quality components that don't have 1000 RGB LEDS all over them. This is not impossible to do.
Ok so don't install a browser if you really can't control yourself from being distracted by the internet. Install a block list of all news sites, social media, and whatever sites you waste time on if you need to go online.