How much weight can I lose?

Bonjour, so I want to ask a guy to homecoming, but I want ot be confident this year. (: so I weight 132 or so right now. I want to lose weight. So, how much weight if I do this: Jog for 30 minutes. (I'm going up to that, I'm currently jogging 4 minutes, walking 5, and I'm doing that for 30 minutes.) Play wii fit for an hour everyday, and do jumping jacks? Thanks!