This is one of the most anti-social diets I know - but you know what? We spent years being social and participating in the drinks and meals and we had the layers of fat to show for it. Years! And now in a few months time, we are reversing the clock, improving our health, feeling and looking loads better than we have in ... well, years! If it took us as long to take the weight off as it took us to put it on and maintain our rotund selves, we would all quit dieting immediately!
I personally am at a weight I haven't seen in 30 years. Trust me, I am fed up with dieting, bored, miss the social events and prone to eating more than I should on ss/ss+, but I am determined to lose the weight, so I will keep plodding along, being good some days/weeks, falling off some times and getting back on because in the end, this is for me and it feels great!
You can do this and putting in place interim goals is a great idea. So here's to you at 72kg!