Mads - it can be done. I know how miserable and defeated the weight makes you feel. And creaky and sore, as well.
You just have to get your head in the right place to lose it. That's the hard bit! But you can, I've lost nearly 50lbs since mid Jan and I feel so much better even though I've still got more to go.
Tackle the drinking, first. Alcohol makes you hungry, makes you overeat and saps your willpower. Is it habit? Relaxation? Do you want to cut down?
What do you like to eat? I couldn't do weightwatchers because it makes me hungry and food obsessed. But I get on really well with low carb diets (e.g)the Idiot Proof Diet (IDP) or New Atkins.
I think it can be overwhelming to think of all the weight that needs to go. Break it down into small steps. Set a target of 7lbs and try to achieve that. That's not so hard to do. IDP is really good about getting you to understand why your overeating and strategies to stop it.
Exercise helps as well. I got a Davina video - I looked a right idiot, huffing and puffing around my living room and I couldn't get a quarter of the way through when I started, but it was in the privacy of my own home, so noone (apart from small child) would see. And it gets better and easier. Just go for a walk 10 mins.
Most importantly, just do it. Don't think I'll start on Monday or after the weekend. Just pitch in there. Even if you cheat don't eat all the right things, you're getting your head round the idea that you are going to do it.
Sorry for the essay! Hope something in it helps. [smiles}