How do I cope with FOMO of not getting to marry a cute 18yr old virgin? I have little to no interest in 'old' women. Girls just lose so much youthful charm after 19.
Assuming you're not being sarcastic, this is a problem I think.
There are many men who never got a "cute 18 year old virgin". Even if they managed to find a virgin, she probably wasn't "conventionally beautiful" as in
most men would be after her, and she probably wasn't 18, either.
How many men actually get an ideal or "cute" 18 year old for a wife? Probably less than 1/10th of 1%. You need to turn off the screens and/or pornography. Just like women, men can distort their minds by feeding in selected top 1% specimens of the opposite sex, so that they end up looking down on 100% of the opposite sex in their own city. That's a You problem.
So realize how high you are placing yourself here. Philosophizing about the ideal is one thing. You getting or "deserving" that ideal is beyond delusional. Most men, even married men, gave up on your current dream long ago.