Mid-life crisis

So that title may have been misleading…maybe not. For some reason for the past few months every time I see old people, I want to cry. This is all due to the fact that one day, when driving home from work, I came to a fascinating realization that I’m going to get old one day, and that’s terrifying. I’m only 19 years old, so worrying about this stuff is silly, but not to me!!! Like the other day I was in my Zumba class at the gym and there was an old, tiny lady in the class as well. I instantly became depressed due to 90% of the fact that I’m going to get old, and 10% because she was doing just about as good as me. Do any of you get like this? Let me know.