Everybody wants slim-trim body, even I like it too.
The best ways to be a slim or to get slim body is exercise, some body moments. You can also join power yoga or aerobics classes where you can have proper exercise according to your body.
Cycling & swimming are also good to have slim body.
Dedicating you're time to short burst exercise only light ones at first that like last for 10 mins 5 if you like. Gradually build up time with exercise and eat various diets or just eat less even if it's a small amount. Eventually your stomach might shrink so you'll be less hungry and have an excellent stamina or self sense of accomplishment because of those endorphins