The reality is that there was/is no reddit alternative and right now we're all in this transitory phase where we're all looking for a new home. We'll all just have to wait for the dust to settle. Lemmy isn't perfect but is improving and additionally other alternatives like kbin and tildes are in the works.
To your larger point, much of what you're feeling is the abrupt break in habits. I've been using the gap to develop more positives ones, and it's been great.