First, there is no amount of weight one "should" lose by now. Everyone is different. If you are on plan you are doing great. Focus on your plan not on your scale. Get rid of your scale, it will make like much easier.
On to plan. Again, each of our plans are different. Some are better or worse but it's probably more important to learn the discipline of following a plan than the particulars of the plan.
By 3 months I was at my "forever" plan, which was 3 meals per day consisting of 3oz protein, 1oz veggies. I can't always manage the whole meal. If I can't get past one or two bites I may try again in an hour or so.
I dump on sugar and fats, so I learned pretty quickly to avoid those. Otherwise I could eat anything. Some foods, like most snack foods, anything potato, I could eat easily and in volume. For the first two or three years I avoided such foods completely until I could master moderation, which for me was a new concept.
Surgery doesn't deal with 100% of our issues. What goes into our mouths is still a choice.
@liveaboard15 I've commented before that your pictured food would be a perfect meal and it looks delicious. The great aspect of them is that even if one is eating the chicken (as an example) for 4 or 5 meals in a row, adding and changing the sauce can still create quite a variety of flavors. BBQ, Asian, Italian, Italian, Curry... Yum.
Good luck,
Tek