No, you are not like us.

There's a time in a person's career where he is either managed by younger people, or managing younger ones.
Nearing 40, you begin to develop a generational gap with some of your surroundings. Either you need to recruit younger talent, work with (Or report to), or manage younger people. This has all happened to me before, nevertheless, a gap of more than 10 years means a generational gap.
I might hang out in the same social networks. Maybe even (If you're still) go out to the same cool places, or like the same music. I may even look younger than your real age (Of course I do, and so do you! :)).

But still, I'm older. Which means that (If you look at it in reverse), I might as well be 120 to them.
I won't go into sociological terms like the 'x'/ 'y'/ whatever generation, but as far as I know, the two best things you can do are:

- Don't think you are 'one of them'. Acting/ behaving/ chasing habits won't make you younger. It will be like my mom getting into Instagram and starting to post comments on every one of my kids' pictures, backwards to one year ago. Just don't.

- Do try to understand the culture. The habits. The language. Much like understanding the recent buzz tech tool or design language, you do need to keep up, just keep up in your own terms, pace and perception.