I'll give you an example of something I've done recently which has made a big difference. Although, I don't have ideas on how to apply this to other aspects of my computer use (but open to ideas).

I listen to a lot of music. My teenage years/20's revolved completely around music. But I've gotten to a point where Apple Music/Spotify have become like Netflix to me - I have so much choice I don't know what to choose. I like to buy vinyl but it's expensive and not practical for most of my daily listening. I thought about it and realised that, for me, the time when music and technology merged for the best overall experience was the iPod (pre-Touch). I would mostly listen to albums I bought via iTunes (i.e. I cared enough about them to spend money and would listen to them a lot) and I checked out new music via Spotify (which was available in the UK in maybe 06/07) and then bought the stuff I liked on iTunes so I could take it with me on my iPod.

So I bought an iPod Classic on eBay. I deleted all the music I'd 'added' to Apple Music over the years leaving only my pre-streaming purchases (I also signed up for iTunes Match to backup and sync all my Bandcamp purchases + vinyl download card tracks). I've went back to my system of Spotify for new stuff, purchasing new stuff on iTunes, and syncing it to my iPod. It weirdly feels like a burden has been lifted having so much unnecessary choice removed. It's giving me a chance to get obsessed with the stuff I like again instead of quickly moving on to the next thing the algorithm throws at me. I highly recommend it. Currently thinking of ways I can apply this elsewhere in my life (e.g. purchasing TV/movies on iTunes instead of using streaming services but this could get very expensive very quickly).