Julia,
You aren't bound by Watchtower rules and judgements, but you should give thought to modern medical advice and moderation.
No one benefits from excessive consumption of alcohol. Ethanol is a toxin that in itself has NO health benefits.
The health benefis of wine are identical to the health benefis of grape juice, but the health benefits can be outweighed by excessive consumption of EITHER wine or grape juice.
My doctor would suggest that 750 ml a day is at least twice as much as wisdom would dictate.
Please take good care of yourself.