Good Morning mynameis,
I read your post yesterday but wanted to let some of the other members answer you first.............great advice you have received.
I agree you are just having a bit of a problems with your self confidence.
Self confidence usually is based on how well or not so well we've done in previous situations. It is how we feel about ourselves. Our self worth is based upon our previous performance . We all tend to base our own personal values on how successfully we perform in different situations and we often want a perfect performance of ourselves. If we don't live up to our perfect standards, we end up lowering our opinions of ourselves.
We can learn to value ourselves in spite of feeling anxious. . . We often believe we must continually justify our place in the world, that we have to somehow prove to other people that we are extremely self confident and worthy of their esteem . We will spend excessive amounts of time feeling anxious and afraid that we won’t meet other people expectations and we lose sight of the basic fact that we are all right just as we are, in spite of the fact that we are not perfect.
Temporary fluctuations in our self confidence are common, they happen to most of us. Try self talk, tell yourself you are fine. Tell yourself you can go to the party or what ever event you are fearing and that you will be ok. When you begin to feel bad, such as being at a party with a whole lot of people you don't know, stop the stinkin thinkin and take a deep breath. Tell your self you are ok, many of the people at the party maybe feel the same way you do.
Take a break and step outside for a bit of fresh air and remember you are every bit as bright, witty and intelligent as the rest of the party guests.
As far as driving, try driving early in the morning on a Sunday when the traffic is light. Just set a goal and maybe drive to a specific destination. You can do this but try it by your self so no one is there to make you feel anxious or tell you what to do and be a back seat driver.
Facebook, yes it is world wide I believe so sweetie, don't go there and forget about it. I know some people love it and others hate it so if you choose to not participate, kudos to you.
Just keep on working on the self esteem and know you are pretty darn normal. 
Hugs
Kitt