Computers are great, but sometimes everything is made too complicated. Only have the laptop and cables you need then recycle anything else and donate a pc to others, if no longer needed (the site shows how to wipe your data beforehand).
Download (free) Adblock Plus, which wipes all ads from your computer and social media (you can whitelist sites you visit that don’t allow you to visit without them). Once used, you’ll never go back.
Browse Happy shows the latest browsers, to either switch to something better or update a present version. Millions of people still use old versions of outdated ones like Internet Explorer (now Edge, or switch to others like Chrome, Opera or Firefox). This will speed up things a lot, so you can work, turn off the computer and go outside!