How do you stay happy and connected?

All my life I've been naturally resilient, but I feel that resilience breaking (with no distinct reason why).

I want to stay happy—or at least unaffected—like I used to. Anger at the world and a growing sense of despair are consuming me, despite the work I’m doing with my therapist. When I’m not angry, I feel disconnected from everyone and everything I've ever liked. I’ve lost my charm, wit, sharpness and will to interact. I’ve felt this way before but could still maintain a facade—now, even that feels like it’s slipping.

I know there’s no one-shot solution, but if you’ve been through this and found your spark again, I’d appreciate any perspectives, reads, or podcasts.

Side note: I also do some weird shifts, including night shifts and sleep very badly. I know that definitely has an impact and I'm trying to work on it. I'm open to tips from anyone who also has had bad sleep hygiene or turbulent shifts.

Side note #2: I also know the impact of social media and the news, and the need to disconnect from it. But, one of my jobs requires me to pay close attention to the news from as many sources as possible. If anyone has a similar experience and has tips on how to disconnect, while still consuming all the info and doom and gloom, I'm all ears.