To the original poster:

I understand what has happened, but in the future try to take better care of your online presence. To remain anonymous, it's essential to create a completely different username each time you signup to a website. That way, it becomes much harder to track you across the web. In addition to that, some people also use VPN to mask their IP. Some also use different or anonymous email addresses.

For damage control, I'd advise you to delete accounts that can be deleted. If you prefer create a new one but using the above mentioned safety practices.