Anyone else feel isolated even though they're surrounded by people?

I've got a wife, three kids, work buddies, but I genuinely feel alone most of the time. Nobody really gets what's going on in my head. I don't want to burden my wife with my mental health stuff anymore. My friends just want to talk about sports and work. Trying to build some meaningful connections but it feels impossible at my age. Anyone found ways to deal with this kind of loneliness?