Vaca. in April

So, I'm going to the Keys in April. The first week in April to be exact. I need to lose about 15-20 lbs before then! 127lbs at 5'3 in a bikini? ew. I think not. I've been walking on the treadmill for 30 minutes each day, at least 20 situps, and 20 side leg lift things each leg (i don't remember exactly what they are called) and trying to restrict my calorie intake. Sadly, I've been binging like crazy lately :( It's so disgustiung and keeps me in constint pain so i don't know why I continue to binge? Maybe it's psychoclogical. Who knows. All I know is I have to get this under control so I can look at least half way decent in shorts and a tank top v.v