Hi Ghostman,
If you are talking about a sponsor as in an AA sponsor, the only requirement for AA membership is a desire to stop drinking, so no a sponsor will not help you to just slow down drinking.
It's great that you have recognised that your drinking has become a problem. There are other ways of dealing with this other than AA but ultimately most people who find that they can't control their drinking find that they have to stop completely or just be compelled to carry on.
Keep reading the experiences here and see what you indentify with. Take care.