I haven't read any of the replies
So! why bother with weights if you're not planning on muscle gain?
Go for a brisk walk ...one album's length (about 40 mins) a day
Drink water through the day.
Drink a full glass of water 45 mins before your evening meal which should be no later than 7pm (eat nothing after that)
DO NOT WEIGH YOURSELF EVERY WEEK. Try every second to third week.