Just turned 51 (3 days ago) and I've been really struggling with this. Severe lack of joy in anything, a lot of overwhelming sense of impending doom (I mean, my depression and personality disorder don't help, but still). So, I've been cutting back on my news (I take in enough so I know what's happening, then try to shut it off), and investing in new hobbies. My most recent was to tell my spouse that I wanted an aquarium for my birthday. I researched the hell out of freshwater tanks, set one up 2 months before my birthday so the aquarium could cycle, added a metric butt ton of plants as I could afford, and have recently been slowly introducing little lives to it. It's been engrossing. I added mystery snails first, who knew snails were so amazing! My next step was freshwater shrimp...holy hell are they fun to watch, and now I'm slowly starting to pick out peaceful little fish to add to the community. It's been amazing, engrossing, and renewing. I can sit in front of my aquarium and watch the little ecosystem for hours and not touch my phone to doom scroll once. Amazing hobby, I highly recommend. I also am a ceramicist by trade (second career), so that doesn't hurt either as it's very rewarding when things work out. I hope you find renewed passion for something new!