I have been a solo on Olivia these past 4 trips and wouldn't trade it for a thing. The best advice I have for Solo's experience is to show up for the first few Solo's "events" which really are laid back meet and greets. It's a great way to break the ice. My other advice is bring your "fun" hat!! In other words, be ready to relax and enjoy yourself. Don't plan to hang alone in your room much because it won't be very much fun that way.
The mistake I made the first Solo's trip was hanging with my buddy and we didn't go to any of the meet and greets. We should have but we still had fun. If you are traveling literally alone...believe me when I say the following Olivia trips you will have a friends circle that grows and grows each trip.
Best trip you'll ever take!