Size 6/8, but 18 weeks preggers now, so belly expanding.
I eat mostly exactly what I want. I used to run, a lot, but gave that up in first pregnancy and you know what... Made absolutely bugger all difference, I am still skinny and eat the same. Made me question the virtue of exercising from a wright loss pov (fabulous from a feel good pov).
The thing is, when I say I eat mostly exactly what I want, what I want is not not generally unhealthy food. I WANT steamed veg, chargrilled chicken, bread with no butter, sorbet rather than ice cream. When I want some chocolate, I have a few squares. Yes, I might want more, but I just think, enough, and leave it at that. The though can be full of choc (generally is, DH is an addict) but it leaves me unfazed.
When out for dinner, I really enjoy rich food and get stuck into creamy pasta dishes and ice cream sundaes, but rarely.
Point is, I think you need to train your brain to actually enjoy healthy low fat food. Otherwise weight loss will surely o.nly be short term, as who could possibly keep trying to have an appetite that is not natural to them, for decades. Impossible, or a very unhappy life.
My advise is initially choose some foods that you wil consciously ALWAYS choose the healthy option. Not all foods, just some. For example, choose skimmed milk instead of semi on your cereal, it isn't so nice, so you wil probably have a smaller bowl. Before you know it, skimmed is all you know, you don't miss semi and you are still having smaller bowls. Avoid butter. It is a simply very easy thing to do, keep your normal fillings, just completely miss out the butter. Ok, might not taste quite do good, but will still taste good. The slight compromise on taste wil be more than outweighed by the fact that you will be saving yourself a good few grams of fat by not having the butter.
Good luck