Sound like you know where you are going wrong, not eaten since 1... no wonder you are short on motivation.
Best advise you can take Brian is what Paul said about Meal Replacement Drinks. I think you should buy some due to your daily routine or even keep some Protein Bars in your draw at work or in your car for the weekends when out and about!, that way you will have good nutrition to hand when ever you need it. Then straight to the gym from work at 7, and when you get home after your work out you have time on your side to feed the body and rest.
And think more positive, and stop looking on the negative side of things. chin up mate
Maybe you could invest in a meal plan from Paul to work in with your break times at work? that way you will have something to stick to and follow instead of guessing and eating when you feel like.
