Will my lifespan be decreased with how much I drink? I drink 3 bottles of wine in a weekend (750 ml's) on each day of the weekend including friday. Will I die before my time? If so how many years am I cutting off my life?

You really worry too much about your drinking, has anybody ever told you that?
If it worries you so much why do you do it?
I very kindly must say, either stop and live this glamorized healthy way of living, or shut up and deal with the consequences.
And if you cut your life short, it's only the latter years, and those suck anyway.