Normal feeling.
It is, however worth remembering that somebody's nostalgic "when we were real people doing real things"-youth will have been somebody else's "everything's spoilt these days by this horrible tinned noise and television, nobody's talking to each like they used to when I was young"-middle age.
I was already a middle-aged parent in the 1990's and don't remember them with anything like the same "unspoiled golden age"-nostalgia as some pp. My generation were too busy going around muttering "but of course they don't have music like they used to"- in exactly the same fashion as our parents did in the 60s.
What you can do is decide to go against the current. If "more of a lived and real experience rather than a virtual one" is what you're after, you can spend your time on that. There are still people out there who keep busy exploring nature or doing crafts. There are people who do am-dram and play quartets and sing in choirs. I am sure there are people who spend time on whatever unspoiled reality people indulged in in the 90s. Go and find them. Talk to them. Learn an instrument and play it if you're bored with the internet. Perhaps a bit of retro cooking (what did people eat in the 90s- not a lot in my case, but some people must have been better off). Make useful things to have around the house. Even the most modern house-hold can still do with sauce-pan holders. A knitted jumper never goes amiss. And if you go really olde-worlde and learn to lay hedges or mend fences, the National Trust will love you.
One thing I find as I approach the other end of middle-age is that I am actually getting more tolerant of other generations. I'm getting more of a sense of perspective, I can see that my generation was one small part of a chain rather than "when it all happened". I seem to be getting a second wind.
As a pp said, very wisely, these feelings come and go in phases. But you can always seize the wave and use it to think over where you want to go from here.