Army girl new to the website

Hi, I've been doing myfitnesspal for a couple of months on my iphone, but just started on the website. I'm active duty Army and have a 7 month old and a 4 year old. The first pregnancy I gained 75 lbs then lost 55 lbs and the second I gained 65 lbs and have lost 60. I'm 50 lbs for the weight that I was after basic Training I want that physique back! I'd love to find some friends and encouragement here.