[dkarl]

For me, doubt in my ability to know who I could be happy with rose dramatically with a little bit of experience and then fell as I accumulated more and more. Meeting more people made me more and more comfortable with my own judgment about other people and my understanding of what made me happy. I think people who find partners very early in life are very lucky in some ways, though. It's a trade-off, like so many other things. You can have X more years of experience with relationships and with yourself when you choose your partner, or you can have X more years of shared history with your partner.

I do think any doubts you can put to rest in six months or a year, the time is worth it. Couples who divorce take years to do it, and I think they're unhappy for at least half that time.