Sponsors are just people and have feet of clay like everyone else. It is very hard to pick a good sponsor when you are new too. How do we know who would be best? What experience do we base our choice on?
I knew a sponsor was important and after a week or so I had identified two prospects that I thought would be good. I said to the God I didn't understand that I will ask whichever turns up to the meeting that night. I got a very good sponsor. The other chap drank again a few years later, and died drunk.
The difference was that the one I got had actually recovered through the steps, and knew how to show me the way. You have more experience now. Maybe ask someone who has recovered through working all 12 steps.
Out of curiosity, where did you get to in the steps with your last sponsor?