Stop trying to fix this yourself and hire a local criminal defense attorney. You have dug yourself into a deep hole here and you are going to need help to get out.
I would recommend talking to a lawyer in your area to at least ascertain if there is a current warrant for your arrest and how much bond you would need to post before walking into the lion's den! Most lawyers should provide you with this information as a courtesy whether you hire them or not. Feel free to call my office. Even if I'm not available my secretary could probably look that information up for you. Good luck.