dont just go cutting whole food groups out of your diets, thats really bad for you. you just need to eat it in moderation.
A few things, though this sounds stupid and illogical, it's recommended that women, particularly those of a depressed/depressive nature, that you eat a bar of chocolate each day. This raises your serotonin levels, and makes you want to do more. if you want a low fat way to do this, you can get chocolate cereal bars such as coco-pops and special K with chocolate.
If you like to snack, get something thats filling without being bad for you, again, a cereal bar, or you can grab some fruit. Maybe be adventurous with your fruit to stop it being dull. Also yoghurt can be good, bio-pots are fantastic for you, though beware, wholegrain yoghurts have actual wholegrain which is nasty imo.
as for losing the weight, did you know that you have different levels of fat. They have been called different names by different people, but i think of it like this, you have the larder fat, this is the easiest layer to get rid of. Then you have the fridge, this takes more work (because its colder obviously ;-) ) then you have the freezer fat (which is frozen) which takes real hard work to get rid of, and you can be talking about months of exercise etc. It sounds like you've emptied the larder, and now the results aren't coming so fast, this is because you're in the harder fat zone now. So persevere with what you're doing. but try to do it more than once a day. As for having a kid on you while you crunch, it may well be beneficial. makes it harder work.
It all has to be in proportion. Its no good exercising and eating crap. and its no good eating good foods and not working out.
Good luck with it though, I feel your pain.