Hi Welcome Melanie!
I would recommend you post your question in the Lounge where it will probably get more responses. What would really help is to let us know what your meals are like and we could give you some pointers. I suspect that if you are hungry, could be you are not eating enough. I understand when you are starting out how frustrating it can be especially because it is a totally different way of cooking and eating that what you did before.
There are lots of mcdougallers with families who can give you tips for the kids.
2 hours to prepare a meal is long. Personally I would only do that for a special occasion. My meals are thrown together in no time at all by keeping it simple. We have a handful of meals that we love and that are simple and quick to prepare, and we make them over and over. A meal can be as simple as a microwaved baked potato with jarred salsa on top...5 min to prepare or a bean burrito (ready made tortilla, mash a can of beans, salsa, chopped lettuce, chopped onion). With a bit of trial and error, you will find meals that you love and that are easy to prepare.
Some appliances are gold for helping you speed things along...food processor, pressure cooker, slow cooker, blender