For something to be really weird that awkward the way you fear it might be, that something needs be to some kind of a test - an exam - or a competition - in which you would have to perform, and might very well fail.

Anything can be made to feel as if it were a performance, including sex and dating, but it does not have to be made that way.

In fact, normally, that guy who will be your first one will be ... how should I put it? - well, REALLY happy to be with you. REALLY HAPPY. That is all there'd be to it - he'd be really happy, really excited, etc. lots of really positive things. So it won't be a performance for which you'd be unprepared.