diet related trouble keeping it up

About 6 months into a plant based diet now.  Well, not totally, in that time I think I have eaten 2 turkey sandwich, one roast beef sandwich, one sausage, 2 slices of bacon, 2 little barbque ribs, and about 2 times a month we have a tiny bit of fish, usually salmon.  My wife has had only the salmon and at Christmas a small slice of turkey.  Oh, and things work superbly.
Also we have had virtually no processed food, no dairy, white flour, high fructose syrup, sugar.  Instead we have lots of nuts, which by the way nuts high calories and fat do not cause weight gain unless you eat more than 1/2 to 2/3 cup of them a day depending on your body size.  We eat tons of vegi's and fruits, beans, whole grains.  The only thing you might want to add if you go off meat and dairy is a B12 tablet, do not take multivitamins, instead throw the money in the toilet and save the drive to the store.