Ahh. Lets see if I can give you the good answer you're looking for.
Have you read the DJ bible? It's at the bottom left of the page. It is essential reading. After that you should see the blueprint de-coded, I'll PM you.
But, most importantly, YOU HAVE TO GO OUT AND APPLY IT!
There is really no way around it. You have to go out. You have to step outside your comfort-zone. You have to act in spite of the fear. It will diminish over time. I promise you, the first approach will feel much more scary than the ones that will follow. The first each day will always be the worst one, but it will get better by time. And also, don't use a lot of pick-up lines. Just be original and don't worry about what you say. Say "Hey my name is __" It doesn't really matter what you say. Of course some lines spark attraction immediately, but it fades in a few seconds. Don't waste your time being scared, inactive and trying to find a good pick-up line.
As for your kiss, don't worry about it. Don't become outcome dependent over that. If you go out, have fun and disregard the outcome; it will happen. However you do have to grab your balls and DO IT.
Rejection is ALWAYS better than regret.