Okay so I am a bit Confused

So last night as a source of inspiration I went on MFP to attempt to see the success of others and gain a bit of encouragement for myself as I have a long long road ahead of me. Lets face it I could stand to loose almost two hundred pounds. While reading I came across a blog stating the secret of my success. Excited I quickly opened the blog to read a rant, yes as I am doing now but hear me out, about there is no real secrete to success its just diet and exercise and that they are sick of hearing excuses as to why people are fat. To me it felt like they were saying that if you are fat you are lazy and unmotivated. Well I am hear to say that this may not always be the case. I grew up in a home with my mother and grandmother. My mother did not know how to cook, and my grandmother, well she was dying and could not cook. For me food was always the reward for a job well done, and I was taught that when you are happy you eat and when you are sad you eat. I was never taught what types of food make you fat and what you should and should not eat. Infact when I wanted to buy fruits my mom would tell me that it was to much money and to go pick out a piece of candy. Fast food, well its what I grew up on, It was what we ate for breakfast, lunch and supper. As I got older, I attempted many different types of diets, in an attempt to loose weight, and times was successful, however, I always gained the weight back and more. I gave up, got married, and had a baby, boy did the weight come on after having a baby, my days of dancing the night away were gone, and the weight built up. I again attempted to diet, and lost almost 100lbs using slim fast, yes slim fast works well, however, the minuet I went off the shakes I gained the weight back. Imagine my despair after almost a year of starving myself all my hard work was fading and honestly I had no clue how to stop it. I am at the point that I really truly want a change; I don’t want to raise a fat kid. My daughter is seven, and is within the BMI for her body, however she is teetering on the high-end of a normal weight. In speaking with my sister today she told me to just give up its genetic and no matter what I did my kid would be fat, and I will be fat the rest of my life. I refuse to take that answer; I refuse to believe that I am powerless. Two weeks ago I found MFP and have found it shocking that the foods I thought would be a good choice for me, really are horrible! I went to 99 with my hubby on a date and attempting to stay on plan looked up almost every meal and it was almost 1500 calories that is most of my 2000 calories that MFP says I should be getting in a day! I looked up Wendy’s, which was right next door and found that I would be better getting a double cheeseburger and a small fry then eating at 99. I can take blame for letting myself get this far out of control; however, I was never shown another way. I was never shown to count calories, or fat grams, I was never told what were good food choices and what were bad, and in my family we were not allowed to talk about it. I love MFP and alot of the people on here have gotten really good results, and this seems like a positive place to start, as it can help guide me to what I should and should not be making for food choices, however, I also have seen people on here who forget what it is like from the starting line. I am at the starting line, I have lost three pounds in two weeks, and you know what it may not seems like much, but I did it, and I did it healthy. I think that I can maintain what I am doing for life; however, I just wanted to share my feelings, because I am sure that I am not the only one out here at the starting line. May of you are in the race, please don’t forget what it is like to start, please don’t loose compassion for others; we need your help and your inspiration.