I do not know diddly about the program you are on, but my 2 cents worth.
Eat the protein and the veg first, if/when you find you are full, stop.
There is no reason to continue to eat if you are full.
The "clean plate" club is a reason many of us are here.
2+ year maintainer.
The human body is capable of amazing things! But without the mind, it is nothing. Get your mind in gear and the body will follow!
Be selfish about caring for yourself, you deserve it!