First off, let me extend my condolences to you for your loss.. I've not experieinced what it is like to lose my mother or one of my aunts yet but I know it will be difficult when the day comes...I can definitely tell you that plateauing is the absolute worst feeling.. I was 220 lbs and lost 100lbs in the span of a year..I kept it off for 5 years and now the weight has come back and I'm 180 now.
I can tell you that when I was exercising and I plateaued I had to step up the intensity of my workouts in order to continue losing weight.. when I finally reached my goal I just did maintenance workouts...so, how did I battle my "spirits of laziness and procrastination"?
I had a large mirror that I worked out in front of..I didn't self-recriminate I would just look at myself in the mirror while I worked out and it worked..Each workout would give me the strength to continue and do the workouts for the next night. Someone once told me that if you think of your food as fuel and not something to enjoy that it can help you rethink what your eating. You don't put sewage in your gas tank when you go to fill 'er up do you? Well, you can't put sewage into your body and expect it to run at its' optimum either...I'm not saying you cannot enjoy what you eat but remember that it is only fuel for your body, for your skin, for your cells, for your muscles, and for your nerves and do what you can to keep those parts in check...
Berries...great anti-oxidants good for skin good for hair good for nails
Whole grains... cholesterol fighters, possible cancer fighters, great for digestive health
Veggies... great for fiber great for digestive health great for vitamins and minerals
Dairy... great for vitamins (use skim so as not to have too much bad fats)
Oils & Fats... the less proceesed the better but make sure not to have too many
as too much of anything is not good for you
As for the train of thought remember this God created you to be you not to be the embodiment of your mother.. you DO deserve to be healthy and you DO deserve to be happy and God wants that for you. :)
Blessings
-Julia