Hi,
Welcome and I sure do understand how you feel at this point. No one in your life believes anything you say, trust is gone, and the shame is always there. I'm so glad you found us because we can offer you lots of support.
The best thing you can do is stop drinking now and don't buy anymore alcohol. You can deal with the work situation on Monday and see what happens. But, however it works out, you need to focus on recovery.