Change User Name, Delete account?

I was wondering if any of you knew how to change a user name or delete your account and start over?  I have the same user name for my aim,yahoo and another message board etc and it seems there is always a stalker type person.  A family member of my DH (who he does not speak with) found him through a twins message board I am a part of---must have found me by my username.  I just don't want them coming here.  This is private stuff and I like to keep it that way.  I should have made a different name.

I don't know how to delete an account but my account is set to private. In user settings you can change it to private and you can always open a new account just like you did the first time you came here. I'm sorry you're having so much trouble with that family member. Also you could ask Amy Williams she is a mod here about changing your user name without having to delete your account or opening a new one, she may be able to help you or send you in the right direction to get the help you need. I hope this helps. Merry Christmas, ~dori~