I have 1 month to lose as much weight as quickly and safely as possible! opinions please!?

Yo-yo dieting is very detrimental. Essentially, what happens is, your body gets pushed to it's limits before losing the extra fat, and when you yo-yo diet, you pretty much set the bar higher and higher for yourself. Cardio will be your best bet at losing the weight, but don't let up come June, continue your routine to keep the weight off and you won't be in the 'dilemma.'