The only power pill that I know is "motivation".
What are your motivations?
To look great?
To be "healthy"?
To not be looked at with disdain?
These motivations can help some, but when you are on a tough day while slimming or you are in the stages of maintaining your "ideal" weight,
These flimsy motivations will fall to the wayside.
Make your motivations count.
Would you like to see your children learn good eating habits?
Would you want them to see plunge deeper into weight gain if you do not grab the reigns?
Wouldn't you like to know that you can see your two young ones grow up and be their when they graduate?
Wouldn't you like to know that, you are the ones who taught your kids that we should express ourselves and not stuff ourselves?
Lastly, If you starting getting fit for any reason, make sure that it is for yourself.
The main reason that we stuff ourselves and basically abuse our bodies with food or other things is because we do not love and neglect ourselves.
It may be difficult, but during this slimming period, take some time now to "not be miserable".
Fat doesnt make you miserable.
Being Miserable, might affect how you use food. (as nutrients or a band-aid).
Take some time to do what makes you happy, regardless of if you are fat or not.
Some things may not be as 'easy' or as 'fun' as they might be if you were thinner, but you should not let being overweight stop you from living a wonderful life.
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Financial Aspect:
I am unaware if you live in the USA or not.
If so, you are doing quite well.
homeless people in america rarely die of hunger ~ (did you notice?)
While in other countries, people die everyday of malnutrition.
The fact that you are here and breathing means that you have had food to sustain you for years.
Now that the misconception is out of the way, what you are really saying is:
"I dont have money to buy the Organic/Best/WholePaycheck foods"
"I cannot afford The lowfat stevia soft serve yogurt at the grocery store".
Its true that most "organic" foods in main chain grocery stores cost more.
Though Lets Get Real.
If you are really dedicated, you could live on beans and rice.
Its relatively cheap and affordable.
That being said, You may want to use more variety with less diversity of ingredients.
Example with beans: Chili, regular beans, burritos, etc.
For fruits and vegetables, you can research and find local farmers markets or even local co-ops that sell affordable goods that you need.
The co-ops are basically "better than organic" in the sense that you are buying it directly from the farmers that grew it. (from the soil to your kitchen table

)
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Lastly, to deal with the Fat issue,
It may be true that you are "fat".
That does not mean that you deserve to suffer or to be treated any sort of way.
Being overweight comes from eating too much over an extended period of time (called gluttony)
The reason behind the gluttony is the "REAL ISSUE" that may be causing the feelings of unworthiness or low self esteem.
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Pep Talk:
Lose weight to gain a better life
Lose weight but also leave that baggage behind
Lose weight but gain substance
Lose weight to see your kids grow older
Lose weight to see your self mature better with age

Lose weight to see your life go into a 360 turn!
Finally:
Lose weight because you love yourself, and you are a very special. There is no one else in this world who is like you. You are unique, one of a kind , and there will never be another one like you afterwards.
Be the best you that you can be!
Have a Great Journey!