I've been reading this topic with great interest - I say every year that I really must change my habits. I've always been somewhat hefty but it is now causing me problems eg. my feet have swollen so much I am struggling to find shoes to fit properly, finding seats/leg room too small in public places, things like that [:(]
Like you Lesley I have problems with the motivation, and also the novelty wearing off after a while - I have made a little start by challenging myself not to buy crisps/chocolate until my birthday (mid March) That doesn't necessarily mean I won't eat them during this time [:D], but I thought it might be a good idea without being too impossible.
Motivating myself to do the exercise will be difficult though, there are some nice walks around here, but the damp weather we've been having recently plays havoc with my catarrh. Although I know that can be a vicious circle, as it is very often weight-aggravated!
I did weigh myself on New Year's Day, so I know where I am starting from, the shocking thing is that I have actually been heavier than that.
Final payment 1st April 2016.
Completion Certificate received 19th May 2016.