newbie- you can handle the 500 calories because you should not be hungry! even if present to some degree, it is not generally hard to manage if you are on the appropriate dose of hcg and it is fresh. i'm only on day 2 of the 500 calories (round 3) and i almost forgot to eat today because i was not hungry. please read the "pounds and inches" manuscript by Dr. Simeon. he states that results will not be optimal even when increasing to 600 calories per day.
that said, i have read of a few programs out there that allow up to 800 calories, as well as a greater variety of vegetables. however most people will tell you that you will not lose nearly as much weight on these programs. the extra calories may also be a problem when it comes to the stabilization phase, and being able to keep the weight off. Dr. S. is very specific that the calories should be restricted to 500 per day. you are allowed to split those calories up throughout the day (as opposed to just lunch and dinner) if that might help with your energy. i generally start my day with an apple, to get my metabolism going.
Please read his protocol and we'll be happy to answer any further questions! It is available on this site, or just google it and you will see many options for viewing it. Personally i would not take the risk of eating more calories unless you have an extremely active job where you would not be able to function on 500. remember that your body is releasing about 2000 calories of fat per day, so you also have the nutrition/energy from that. many people do experience a certain amount of weakness/fatigue while on the protocol, yet at the same time you can be kind of "wired", so some people report actually getting more work done- i did.
if your job/lifestyle would not be possible on 500 calories, i think you have the right idea- eat additional protein and veggies (when you need to), but no additional fruit. you also might want to try eliminating the bread sticks. best of luck! -margie