i see, my mother used to do it before school so i had to take care of myself and going to school and all but its good that you're there for your kids and all. well i think swimming is good, gets you out of work which is just basically sitting in a chair all day, right? so yeah try it out, go for it! maybe instead of celery you could have like carrots or cucumbers, fruits and veggies, all that because they're mostly contained of water, but also you cant gain weight from them. to help modivate you, when you watch like a tv program, durring the commericial break walk around your house, jogg in a spot or something, always helps me. walking up and down stairs too. if you have stairs at your work, take them instead of the elevator and what not.