You say "radical". I say "attempting to undo some of the damage of the past few years". Anyway, I've always had an independent streak, and never liked how my of my life was controlled through my phone by big tech. I've tried all of the typical steps - fully-FOSS phone (CyanogenMod), quitting social media, and leaving my phone in a different room at night than my bedroom (which was probably one of the single most helpful steps). The hardest thing to quit was Whatsapp - at least where I live (UK), it has come to dominate social organisation.

I can only recommend this process, even if you don't make it all the way. I also appreciate that where I live, less of life has become dependent on smartphones and apps, and making these choices might have more sideffects on your life if you are somewhere like the US.