You really, really need some carbs at breakfast. Low GI carbs. If you can, bring a protein bar with you or something. Something with some calories. Clif bars are very cheap. You could stick that in your pocket and shove it down your throat sometime between breakfast and lunch.
You might want to try drinking gatorade instead of water. It has calories and electrolytes, and both are essential for you. You don't have much in the way of carbs after your workout. A couple of slices of bread, a cup of grape juice, and some yogurt aren't all that much. I have more carbs in my PWO shake on leg day. And your next carbs aren't until lunch the following day. I don't think that's really enough carbs to replenish glycogen & recover, especially considering that you're outside working for the next half of the following day. If you have a blender, add some oats to your PWO shake...or just throw them in raw. Hopefully that helps.