It's interesting, I think, as you say, everyone goes through this. My remedy, if you can call it that, has been learning to juggle (and all the related disciplines that I'm doing (4 clubs!!)). It's taught me that even as I get older, I can still learn, and I still understand (in fact, I probably understand more than I did at the time) how to learn. Also, it teaches me that learning things is still both worthwhile and fun.

Just because Google exists, doesn't mean you have to consider it in that way.