So lately I've been getting overwhelmed by this feeling that there's SO MUCH I don't know and I'll never know because there's no way to know EVERYTHING.

Maybe it's just part of getting older? (I'm 46) but randomly, throughout the day, this wave will come over me and I'll get mildly depressed that there's so much stuff I don't know yet.

I know it's super vague but does anyone else have this? Any way(s) to deal with it? I try to just push it out of my mind but I'm not 100% sure that it couldn't be helpful in some situations?