Honestly, peel, you need to relax, and do a couple things for yourself:
1. Realize that you are who you are, and that not everyone is a social butterfly (I'm certainly not).
2. Realize that not a single human (nor ape) on this planet is perfect.
3. Understand that just because it's right for another person (or a group of people), doesn't mean it's right for you.
4. Know that "Hi, I'm Peel, what's your name?" isn't weird, it's actually impressive.
5. Remember that rejection is not the end of the world: it's a learning experience.
5. Know that relationships begin and end with you.
Also, I noticed that your post is huge, compared to most "I have a problem" posts. It tells me that you're a bit of an otherthinker, and possibly even a bit of control freak. If I'm anywhere near right, I'd advise that you stop thinking and start doing. Take a chance and just let things flow. If you continue to think too much, your mind's going to wander to the negative things (as it seems to naturally do), and you'll never let yourself climb out of your safe, little hole. If it goes badly, so be it (point 5 above

) and if it doesn't, take it as success, no matter the size, and move forward.
Hope this helps, amigo.