Hi there...I am glad to hear you are taking control! I am only 11 days sober, but I would recommend a visit to your doctor. He or she can give you medication to take temporarily to help with the withdrawals until the alcohol is out of your system.
Your energy level will not be very high at first; please don't rush this, it will come as your body and mind heal.
As far as the depression...I don't know your personal situation, but we had lots of snow here today in PA. My son and I went sledding and built a snowman...it was a great to alleviate some of the depression I had been feeling, and took my mind off alcohol.
Do not beat yourself up with guilt. What is done is done. You cannot change the past, but you can take control of the future. If you decide to join AA, there is a step you can take in which you make amends to those you have harmed. I am by no means an expert on the AA program, so hopefully someone here can offer you some more in-depth information on that.
Good luck and welcome!