New mom would love to loose some weight

Hi, my name is Lauren and my diet starts today. I would like to drop the weight I've gained from my daughter as well as the pounds I put on before her. This is my first child, she is 10 weeks old and I am going back to school starting next monday. I'm taking an exercise class which will help but I would like to find some friends for support as well as just some friends to hang out with that know what I'm going through. Feel free to add me I would love to get some tips from other people.