Ghengis, when I gave up smoking it took at least 20 attempts. Every time I failed I felt like sh*t and felt like I was back at square 1. The important thing is not to let a setback stop you trying again. It is not going to be easy, if it was everyone would do it! Don't be so hard on yourself, you have to expect blips.
It is when you stop feeling that you are missing something and start feeling the benefits and that your life is better, not worse, as a result of stopping that it will get easier.
Try thinking about the things you like about drinking and the things you hate. Write them down in two columns. Then look at which has the greater effect on your life. Do the positives outweigh the negatives? Does the buzz you get from the first glass of wine outweigh the awful feeling every morning when you wake up with a hangover and realise you have to struggle through the day again feeling crap?
Also, although I realise that you can only give up for yourself, think about how you feel with your kid(s) and how much easier life would be with them if you weren't permanantly hung over (I know how crap I am with dd when hung over and that's only once or twice a month!)
As for your dh, I reckon he is scared of what you might become if you don't drink. I can relate to that, I remember my dh once saying that he might give up drinking for good and my first reaction was entirely selfish: Who will I get pissed and giggle with? Will I have to give up cos he doesn't like me drinking now? Celebrations won't be such fun any more, he will become boring etc etc. He didn't give up, but I still remember those feelings.
It is scary when your partner changes something that has always been part of your life together, but if you talk it through with him and explain that it is making you unhappy and that you will still be YOU, just happier, it might help him.
Good luck ((((())))))