Worried about 1lb per week

So the real question boils down to this:

Do you want to successfully lose 1lbs per week and be 52lbs lighter this time next year or unsuccessfully lose 2lbs per week and be exactly where you are or worse?

Successfully losing 1lbs per week is better than failing to lose 2lbs per week. Losing 0.5lbs per week is better than not losing.

Think about it this way. I started trying to lose weight when I was 20. If I had of lost at a rate of 0.25kg (250g/0.5lbs) per week I'd have been a healthy weight by 23 instead of finally starting to lose weight sensibly and sustainably at 43. Taking 3 years to lose weight may sound like a long time but it's nothing compared to taking 20 years to not lose weight.

I would stick to 1lb per week as a reasonable goal. If you actually dig into things, like I tend to do, you will find that most dietitians say that it is a reasonable amount. Trying to lose too much, too fast can be detrimental to both your physical and mental well being. You want to lose more, but you are so hungry you snack, and don't lose any and it leads to being frustrated and depressed over not being successful in losing weight, which causes binging and the cycle continues. I shoot for 1 lb a week. I have been doing it for a month and even with the ups and downs, I'm actually down 3 pounds, so it works.