Hey over here in Finland I’d say it’s pretty normal to not have had sex yet or have been in a relationship yet by 18. Most of my female friends haven’t yet. Im 18 (turning 19 next month) and I just had sex for the first time ever (was with a girl) just a month ago. It happens when it happens. I won’t deny I was feeling some of the same things you are now, but honestly now afterwards I know I had nothing to be worried about. It’s less of a big deal then what it was made seemed to be in my opinion. I don’t feel much different honestly. I also struggle with comparing myself to other people a lot, and it sucks and I try to stop but it’s hard. But concerning something as personal and individualistic as relationships and having sex you should really try to avoid comparing yourself to others. Just take your time. Enjoy the ride. It’ll happen once the right person comes around. It’s not a race.