Svelte 2013

Hi everyone. I just signed up and am completely new to the site. I'm 24 years old (turned 24 less than a month ago) and am a solid 150lbs or so overweight (according to the height/weight/age posters). I've been relatively big my whole life and since type 2 diabetes runs in my family, I need to turn this ship in the right direction. I'm currently at 260ish pounds and I'd LOVE to be under or at 200lbs by July.

I currently work as a preschool teacher and am attending school parttime so any motivation to get to my goal would be MUCH appreciated!