If your job is physical, like standing walking, and then your also training, you are probably making yourself more tired. Cut back on your training until your body adjusts to new diet.
2. Eat more greens, your diet does not have enough, from what you posted. , and it could get serious. Google "green smoothies" and make 1 a day, greens with fruit, with a little spring water & ice. Also eat cooked greens of some kind, with more spices for dinners. This will cure your energy problems.