I am female, in my 30s and I have 20 kgs to lose. I just found out I will be donning a swimsuit in a month with my skinny in laws and I need to do something fast to look like moderately less of a bikini covered troll. I have lost 7kgs and been doing some yoga and some Jillian Michaels but I have had the flu twice since starting 2 months ago so i haven't gotten fit much. I have heard that weights are better than cardio to improve your general shape but where to start. Heavy weights, low reps? Low weight high reps? Is 20 minutes a day enough? Must it be longer like an hr? HIIT? HELP...... Calorie wise everything is under control and I am losing as expected. It appears as if I have lost most of the weight on my top half and I look badly out of proportion. I am dreading this holiday so much. But what's new.