I've found that how long it takes to recover from a manic episode depends on the severity of it. The ones that are accompanied by paranoia, delusions, and/or hallucinations are obviously the worst. And the ones that run on for a long time unchecked can mean a long recovery time, too.
If you are having a hard time reigning in your drinking, you may be having a separate episode of hypomania. Be vigilant and look for other symptoms...
Best of luck to you, Barney. I am really looking forward to reading a positive update