Hi yingal
Welcome to the forum, you have already been given good advice and welcome here and as type 2 diabetic I am of precious little use to you so just wanted to say I care.
I am so sorry to hear of your bereavement, emotional traumas such as this cause things to go haywire, have you considered bereavement counselling? Your Dad is in your heart forever and though we are told that time is a great healer I know that is true but even so I still cry now and then for loved ones that I lost years ago.
Re losing weight, I once weighed 23st, I found it helpful to not to think that I need to lose 14st to reach my target, my goodness, no, I wouldnt have handled that at all so I just attacked it mentally as one stone at a time, it took me just over two years to reach target weight. I am a comfort eater and I also felt deprived on the low carb diet, well in the beginning, but I learnt to compensate and reward myself with other treats, not food, eg I bought books, perfumes, CDs, etc (sheeesh I ought to move to a bigger house, I have accumulated that much stuff over the years, hmmmm did I really need all that comfort?!), I also pinned up little notes in strategic places to remind me, things like little pickers wear big knickers and a moment on your lips a lifetime on your hips, but I was even struggling with that for a time, who cares about big knickers and hips? Whats that? Mine were well hidden obvious.
But I did get there in the end, with setbacks of course, and if I can lose weight, anyone else can do it too.
Take one step at a time, work out a plan, dont attempt to tackle your current issues in one go, even if they are interlinked with one another, I am sure that you will succeed in reaching your goal.
#All the best
Karen x