When I moved from Digg to Reddit, I used to check back on Digg until eventually the content on Reddit became better than on Digg. The same will happen here.
It took me probably less than a month to completely stop checking Digg altogether. Reddit's decidedly less slick interface had me confused and the content wasn't as easy to digest as with Digg, but it didn't take long to completely abandon it. That was like ten years ago.
I guess a small point I'm trying to make is that you shouldn't feel "shame" for checking reddit. You'll adjust and learn to love whichever alternative you choose
Out of solidarity with the blackout I'm staying completely off reddit until the 15th. After that I'll probably keep checking both. I really like lemmy and it's smaller community feel, but it has some bugs (the eternal scrolling of the "all" page for one) and it's very tech-oriented at the moment. There's not yet that many arts & craft or hobby communities yet, and those that exist are very, very quiet. Not that I need it to get as big as reddit, but more than 2 people active would be nice.
And I actually like the different feel of both, the fact that there's not that many bots (yet) floating around here, people actually discussing things instead of just downvoting you at the slightest disagreement, ... The scientific info on Mander is extremely interesting too, lots of great articles being linked instead of reddits' reposts every couple of days. So I think I'll stay active on both lemmy and reddit. They offer different things, and that's great.