Hi Aces959, firstly you've made a really positive start thinking about making the change and finding your way here, and congratulations on your huge loss previously.
DO you have facilities to cook for yourself and access to more western products?
I also work in EFL in Asia and know the feeling of food being a go to comfort when working hard and long without a real support network.
Can you plan out your meals for tomorrow this evening so you wake up with a plan? I find it much easier to make better choices if I wake up with them in my head.
Do you have days off? Are there ways for you to network and meet others so you can focus on something other than food in your off time?
As for tiny people, try not to compare yourself to them.... even with a healthy BMI we would still appear giant like so that is not something to focus on.
Good luck with starting to make some changes, with the knowledge you gained from last time I am sure you'll do well