My method is using private browsing to open addicting websites. This way their address will not be saved in history and I'll have to type it which sometimes stop me from doing that in mid-way. Also helps with automatically logging out.
If you need an extra push to enforce that you only use private browsing, you can install any browser extension that blocks sites and then tell your browser to not permit that extension to run in private windows.
At least we’re only losing time, not money. But we’re still losing health, by staying in bed too much because of social media…
You can then see how sick that algorithm is in recommending and pushing junk. Only now its junk you will despise.