I do a lot of those things too. I unconsciously pick at my skin all the time and I have Trichotillomania, which means I pull out my hair (I don't pull my lashes, although its a common spot for trich). Here's a good site about Trichotillomania if you're interested:
www.trich.com
Unfortunately, I don't know a lot about the skin picking although I've heard that many people who have trich also pick their skin.

You're definitely not alone in this, there are many people out there who do the same things as you do (including me )

Hugs,
Sarah