Wow - I can only imagine what you've been through..... I am truly sorry about the loss of your daughter. I'm a single mom too and picked the drinking back up after a period of being sober and after I reentered the world post-divorce.
I've also had to be treated for depression. The anti-d's just keep things from spiraling downhill, which is important as I try to stay sober. I still have bad days, but not to where I feel there's nothing to get out of bed for.
The first several months of sobriety I had very little energy and very little motivation, and that seems to be fairly common. I don't know what happened, but by the 4th month I had lots of energy, looked better, and sobriety felt normal. So be patient with yourself. Also, don't be afraid to go back to counseling or a support group for other parents who have lost children.
I'll keep you in my thoughts and prayers......
