Many have mentioned it and I was going to do some quotes but there are too many.
I too have wanted to lose weight for a while...simulate a plan...never follow through...put on another pound or two...BUT for New Years I decided to change. I developed a plan ON PAPER. For some reason, having it down on paper and looking at it and charting my progress seems to help.
I am making very small changes at a time though. I know that in the past major changes where too major and I didn't stick to it at all! So this is sorta my plan:
One thing was decreasing the cokes and increasing the water so I started off with the goal of drinking no more than 2 cans of coke a day and at least 2 bottles of water....Once successfull at that, I went to 1 coke or glass of tea a day and at least 4 bottles of water...I enjoy cokes/tea so I'm not going to decrease it to less than the one, but I am now to the point of drinking only one of them once a day consistently and I drink at least 6 bottles of water a day. I teach...and found that every time I felt hungry or snacky (besides lunch) I open a bottle of water and see if I'm still hungry after the bottle of water (usually I'm not). I also order water at restaurants and think of it as a way to save money too (water is almost always free). Again this was a slow process, I didn't wake up January 1st and say no more cokes/tea and 8 bottles of water a day...I tried to make my changes about every two weeks.
The second thing I looked at was eating habits. I don't eat a lot, but it's almost all unhealthy (or at least not healthy). So I made a conscious decision that starting January 1, I would eat at least one "healthy" lunch a week and 1 "healthy" dinner. Also I stopped buying almost ALL snack food/dessert type stuff and I buy fruit and keep it handy at school and home. If it's not in the house I can't eat it. I'm now up to making 2 lunch choices (lunch is the hardest for me since I am not home) and 3 dinner choices. I still don't go crazy on the other days, but again this is in writing and I record my healthy decisions.
I also realized that I frequently wasn't eating until AT LEAST 8. I had read numerous times about how that was not good so I worked on times too. In January, I had to be done eating by 7. In February I moved it to 6:30, and this month I rarely eat after 6. (of course there are always exceptions, but they are happening less and less). And I write it down every day that I meet my goal.
Finally was exercise. This is the hardest for me as I seem like I"m just so busy that I can't fit it in. I'm a single mom. I am at work by 7:15 and rarely leave campus until at least 5. But after analyzing my schedule I realized that my daughter was taking dance and twirling on Monday and Wednesday so in January I parked the car when she went in and I walked around town for the 45 minutes during the class ONE of the days and reserved one for grocery shopping/errand running. My daughter also received Mario: DDR for Christmas and I play on that at least 2 nights a week for 30 minutes. Last month I started doing both days every other week and increased the intensity of the Mario DDR and try to do 45 minutes instead of 30. This month she started softball practice also (and it's at my school where we have a track) so I have now added walking on the track for the hour and a half or so that they are practicing (at least 2 of the 3 days)!
I'm so excited. I can't tell you how much weight I've lost as I refuse to step on a scale as I do not want that to be about that. I want it to be about being healty and active. However, I can tell you that at the New Years, my size 10's were very snug and uncomfortable. I couldn't weight to get home in the evenings to clothes with elastic.

They now fit correctlly and are not uncomfortable at all. I can't weight until they are too big and I can buy new clothes.
Also, I have found I am gaining more energy. I actually have had energy to play outside with my daughter (which seemed to never be a fact before) in the afternoons. I am teaching her to play horseshoes. We play kickball and I practice softball with her at home.
I guess this has turned into a very long explanation of what I'm doing, but I wanted to reinforce that if you can't make yourself get started, maybe the writing it down - having a plan and seeing yourself doing it (or not for a couple days and knowing you need to get back on track)...and taking small steps may be the answer instead of pills. I'm not saying no one should take pills. I know everyone is different, but wanted to share my story as so far it seems to be working.