DDD
you should try and figure out the number of units you drink - it won't make much difference when its easy to measure (e.g. 1 bottle), but it will when your consumption drops (and if you stick to the TSM method, it will!).
The UK units of alcohol are quite easy to work with - 1 unit is 10ml of pure alcohol. Wine is about 12.5% (give or take), so you need 100/12.5 *10 ml to have one unit, i.e. 80 ml of wine.
A bottle is 750 ml, so approximately 9-10 units (allowing for some wines being a little stronger).
Safe limits for women (I think you're female

) are ~14 per week and no more than 3 per sitting on average, so that is your target. Good luck, and post through the hard times - you'll get plenty of support here and the journey will be worth it.