Started MFP on 5/25

Hello,
I started MFP on 05/25/2012, SW 240 CW 231.5 GW 190. I have been struggling to lose and keep the weight off. I injured my knee while on the job in 2002. I got up to 290 pounds the lowest has been 231.5. I would appreciate any help and am looking for friends to challange me.