You don't have to quit cold turkey, but do set up an RSS reader and begin adding the feeds of every single interesting website you find on content aggregators like reddit/HN. Eventually, over the course of months or years, you'll grow your local RSS feeds like large enough to wean off centralized corporate aggregators.

Here's what I did, I put up roadblocks to mindless browsing: Use firefox nightly on android and do the hackery required to install arbitrary extensions, and install the "Request Blocker" extension. Block all browsing front pages, /r/all /r/popular /r/pics or whichever subreddit you want to block yourself from.

    *://*.reddit.com/r/all/
    *://*.reddit.com/r/popular/
    *://*.reddit.com/

Also do this on your desktop machines.

Also, I use old reddit on my desktop, and I use ublock origin to remove the entire bar of links at the top.

    www.reddit.com###sr-header-area

These blocks are permanent. If I run across an important link on reddit from a google search, or someone sends me a link, I can view it. But what I can't do, is browse the front page or dumb subreddits.

I went cold turkey at the start of Trump’s presidency. Although I will break it for specific searches such as “compare X vs Y item” when shopping, or to view links my wife sends. Wasn’t as hard as kicking my TikTok habit. It’s become a hive mind. Avoid it.