One of the main reasons that they keep telling me that WW is so successful is because of the GROUP support and the Accountability. For myself, I can tell you that's true. If I know I don't have to check-in with someone each week - then my weight loss becomes not quite as important to me because, so what if I blow it - nobody but me knows. If I know that I'm going to have to report into someone each week, then for some odd reason I tend to 'care' more about being successful. Strange but true!

It's also very helpful to have the support and encouragement of others who are in the same boat, or at least on the same journey as we are.
I can also sympathize with you about not being able to afford attending the weekly meetings; although, that certainly doesn't have to be a stumbling block for you if you don't let it.
Do you have any friends, family, brothers, sisters, husband, etc., that would be willing to be your accountability partner? Someone that you could weigh-in with each week? I know that there are lots of clubs and groups on-line, including this site, where you can come for accountability, encouragment, etc., even if you don't have the support of someone close to you at home. You just have to be faithful to tell someone each week - how you're doing, good or bad and make a committment to yourself that you are going to be faithful to your plan, no matter what. I know it can be easier said than done - but, the point is, it CAN be done. There are lots and lots of successful losers on this site who are proof.
If you think you can - you CAN.
Good Luck.