Doing self discovery without action is going to yield zero results.

The way you deepen your self discovery is to try new things out and discover new interests that are beyond your work! To steer a ship, you first need to get it moving. So move, try shit out and then you can course correct accordingly.

I remember trying out a Salsa class one day. That was enough to get me hooked to dancing almost everyday and it being something I really look forward to after work. Who knows? maybe yours might be pottery, or board games, music, community work etc. Try. shit. out!