Well, the usual and agreed standard is anywhere between 1 to 2 lbs per week.  So, this means, I could not get the lower side which is 1lb / week, considering 56 weeks in a year.   Even my GPs (few docs I used to consult) told me to take it easy; there is one stop solution 'Metformin'.   I remember my body never reacted in good way to exercise during the first year.  I was able to actually sense that resistance.  Saggy belly, swollen joints, uncontrollable head-ache after exercise - simply my system hated any workout.  What all it liked were - French fries, potato chips, Chinese fried rice and of course Coke the great.  Even today, sometimes I indulge in those things, but not compulsion anymore.  And then even now if I am careless with diet about 3 days in row, my weight races up - which means whatever I eat body wants to retain as fat and get back to its previous form or shape.   Actually I am now addicted to coffee with milk and sugar.  My target is get body fat to around 15% and that looks impossible. 
You know what I liked the most on this forum?  The quote from one of the users 'Paul59' on this forum - It will never beat me.
There are some great posts on this forum, especially the experiences of some of the seniors.   I believe now I have a specific way to beat this T2D.