Join a bunch of communities that you may be interested in to fill up your feed with a bunch of stuff to read. That way, if you want to take a break and read stuff, you can look here rather than on Reddit. You can look for communities here that are a close match to what you had on Reddit. Over time, you can dial them in and hopefully not feel the need to go back to Reddit.

I never go back and just to read Reddit. I only go there if a web search looking for something in particular takes me there.