Many blessings to you and your family Clare. I have no real words of wisdom, just some personal recollections that you might be able to relate to. When I went to my first Divine Liturgy 15 years ago, I was scared, nervous, excited and wondering what I was doing there. The Sunday before I'd just renewed my membership in my childhood ELCA (Lutheran) church and the next Sunday I was in a strange Orthodox church fumbling through a service book. I felt so hypocritical because I'd just stood seven days before to reconfirm myself in Lutheran beliefs. I'd felt there was something more out there, but I'd been going back to church with my mom and just thought that was what she'd like. Maybe I was just looking for something new and different from my childhood, but from that first Divine Liturgy I just knew it was the right place for me and I never left. I still remember the smell of the incense.
So, there's no way of getting around attending that very first Divine Liturgy, but it's not nearly as bad as all those dreams you have where you're in a strange place dressed only in your underclothes (or maybe nothing at all) and everyone is staring at you. Just remember that a good portion of those folks might have been converts only a few months or years before you and they can certainly sympathize with your feelings. If they turn and stare or look at you when you enter, don't be paranoid - everyone is just curious and happy to see new faces. They'll be all over you with antidoron, coffee and friendly questions right after Liturgy, so I hope that doesn't feel a little overwhelming.
I still get excited and curious when we have visitors, but I have to remember not to preach too much, just take visitors at their own pace. It's good practice for all of us Orthodox to not smother our visitor's flame of inquiry with pamphlets, books, and pushy or overly personal questions. Give them some room to get comfortable with everything and don't just assume that since they've walked through the door they're automatically going to convert and be your newest parishioners.