if the 2 small burners are not enough for you, you can get a portable induction cooker relatively cheaply. I find a pressure cooker really useful and quick for 1 pot meals.
It can actually be cheaper eating out than cooking your own food unless you do not enjoy Thai street food. It's expensive cooking for 1 person because you need to get a list of ingredients just to cook 1 dish.
In the Midwest, you have to drive to get to a food joint. Over here, you only need to step out onto the street and you'll find a food cart or two, 7-11 round the corner with ready meals. And most are 30-60baht only.
Most apartments here provide a small kitchenette even for studios. My 1 bedroom even has a full sized oven.