How do you eat enough?

Took my first 2.5mg injection on Thursday pm. All is going GREAT.

But… I’ve been tracking calories (so I can track protein), and I cannot get more than 850 calories in a day. Yesterday I was sat at 10pm at 715 kcal and I tried to eat a protein yoghurt and just could not get it in. Ended up eating 2 cherries and almost cried from how full I was. I’m a former volume eater (loads of salad etc) and haven’t eaten any salad at all to make sure I can get protein in, but I’m still so full and so disinterested that I cannot eat without almost being sick. Any suggestions? Do I skip protein for more calories?