In search of motivation - need to lose 25 pounds

Hey guys!

I'm 19 years old and have passively lost quite a bit if weight. At this point, I've lost motivation as I'm not seeing a difference anymore.
Looking for people who're willing to start a google plus or Facebook group just to keep each other motivated. I need to lose 20-25 pounds before September.
I really think having a support system will help me out.

-Shahrez :)