You are not whining. Just describing your situation; a situation that many of us are familiar with. Most people would see this as a call for help.
My suggestion is that you talk honestly with someone who understands by having been there. I phoned AA and started on the road to recovery that way. There are other recovery groups out there. Call AA. Call somebody. Meet with somebody.
I urge you to follow through on this. Othererwise your self-loathing about coming on here and whining may have some basis in fact. Get beyond the self-pity and do something to help yourself and your family. What people at work think is of very little importance compared to the life and wellbeing of your wife and child.
I know from experience. Our family is grateful for AA and my sobriety. Sobriety Rocks! Try it.
~dox