what am I doing?

This blog thing...I don't really know what I'm doing.  I suppose I started it because I enjoy reading the blogs of the artists who I love and respect and I like getting to know more about them - so I thought maybe people who like my art would like to get a sense of who I am.  But that seems so...vain.  And just stupid.  At least, that's how it has been feeling for the past few days.  I'm not sure if I'm cut out for blogging.  I feel vulnerable and invisible at the same time.