How can i keep losing weight?

need help...i have been eating low carb for about 5 yrs with some success i have fallen off the wagon a few times within the last yr i have lost about 50lbs but i have been having trouble since christmas getting back on the wagon i do well for a week or two then i fall off. i dont want to go backwards i feel ive come too far to just give up. i've also been here before where i have lost a significant amount of weight then i go drastically backwards. i deparately do not want to do that again. last january i was 265 i got down to 218 and now im up again to 225 i was all gun ho about working out at the gym and i even got the wii fit for christmas with the biggest loser wii game and i worked out 5-6 days a week and getting results then i got a terrible sinus infection and it completely knocked me down and i seemed to have lost my edge for working out what can i do?|||taking a bunch of dumps helps|||take killer bee's fat burner, vyper fat burner or starter 2 fat burner. people think fat burner's are all hype and dont work but i have tried all three of these and i got really lean. i wasn't super over weight but i wanted to look tone and good by the summer. i decided to try killer bee's for my first time, and i got it at the smoothie factory that is right down the street from me, and it worked perfectly. i would seriously suggest buying one of these products. it works for both men and woman. you can probably purchase these online tooo.