Personally, I don't think you realize how serious this is. You asked for advice. Our collective advice is to get qualified professional help, and not post things that will incriminate you, like the actual amount of alcohol you drank.
Read this. It pertains to using ARD for DUIs in PA.
Do not even think of apologizing for anything, as it might be used as an admission of guilt. Do what your qualified attorney tell you to.