End of week 8 here, I lost 8.8kg.
I did hope for a bit more but I had two weeks with loosing hardly anything so 1kg/week is a good average.
I definitely realise how much drinking water affects it, I really concentrated on it the last two weeks and lost more. it was easier when it was warm, I now prefer tea, not cold water but beggers can't be choosers.
I stay with 5mg for the new pen, I may check with the nurse hotline what exactly the difference should/will be moving up but I calculated that my 4th pen should start when I am on holiday and I don't really fancy unknown side effects while sightseeing.