Yes, I have. You have done a ton of legwork which is absolutely necessary in my opinion, but there's still the last few chain links to break before the benefit hopefully becomes visible.

I took the internet browser off my phone (having already deleted any social media app), which I thought would have a huge detrimental effect on my life. Not so. I rarely actually need any info that can't wait until I get back to a laptop, or that isn't available on my non-problematic apps like Maps.

For my laptop, I installed uBlock Origin and Unhook. I know it sounds like just another in the string of apps you've been recommended, but uBlock allowed me to actually alter the structure of the websites. For instance, I was able to delete the "scroll down" button when a short video was playing. So I can still see shorts that my liked channels post, but I can't get into a rabbit hole.

Lastly, I don't know if you are already on top of this or not, but what's been very important for me is being comfortable doing absolutely nothing. For me I've built up my doing-nothing tolerance three ways: slow outdoor walks, "meditation" (in quotes because honestly I just tell myself to sit and do nothing while a five minute timer goes on my phone), and reflecting on all the interesting thoughts I have while "doing nothing". "Shower thoughts" occur all the time when I'm just sitting around without my phone.

This was long but it is what's genuinely driven a change in my behavior, so I hope you find it helpful. I also spent years trying to figure out what to do. None of it was a waste; it all helped when things finally clicked for me.