I think I might have a try at the Myfitnesspal site, nothing to lose! (well, to be more exact,
everything to lose but in the best possible way!)
Thomas, your height is exactly the same as mine (1.73m - sorry I do everything in metric) so in theory we ought to have the same target. But in all honesty I've long given up on anything below the 80Kg mark. When I registered for WW, they gave me a sort of progress card which was marked "target BMI = 25" or something like that (i.e. 75 Kg). Stuff that!
I lb (0.45 Kg) per week sounds like a reasonable programme to me, but I'm not managing even that! Although I may be close in some weeks. I've been monitoring since about the New Year now (resolution!).
Weighing every day and then plotting on a graph is a good discipline. Try to be consistent about weigh-ins: before breakfast (but
after going for a pee and/or no.2) is a good time. And always wear the same clothes (I weigh myself in pyjamas) - or none if you prefer! Be prepared for random fluctuations from day to day: the once-a-week ceremonial weigh-in at the WW gathering (in day clothes of course, I wasn't about to strip down in front of all the lovely ladies

) was hopelessly misleading. Get a
good set of scales, the best you can afford.