Deciding you want to isn't always enough. Lots of people want to, but some people can't control their nerves. Though that doesn't mean you won't be able to control yours (all the more confidence you'll have, the better it'll go, so think positive). But essentially, if you can keep your emotions under control (maybe have a drink or two first to lose a few inhibitions), then essentially it'll come down to being as simple as just deciding that you "want to". You might not get anyone you want though... different guys have different tastes, and different standards. I don't want this to sound crude (and I'm not implying anything), but even girls who aren't great lookers end up pulling. Sure, they might not pull Brad Pitt (unless he's drunk enough), but they pull. Keep trying and you'll find someone for sure. Whether you'll want to settle for him or aim higher will be entirely up to you.