Why isn't it easier?

Why is it so much easier to gain weight than it is to loose it. No really I got complacent and a little depressed. I stopped caring about my weight feeling like no one was looking at me anyway and I gained twenty pounds. Now that I'm feeling more positive and back to caring how I look I have to try and loose the weight to get that bikini bod I've always wanted.
When I gained weight I didn't do much, went to work, came home ate and watched tv, ate some more. I'm definitely a snacker, I love food. Even as a little child I would sometimes eat when not hungry because I liked the taste of the food. My mom was always telling me to eat less. "Look at me, be like me not your dad" my mom has always been concerned about not getting too big. At one point when my mom was a teenager she ate onion every time she got hungry, she used it as a appetite suppressant and it worked it got to the point that she wanted to throw up whenever she even thought of food. My dad tells me she didn't like to eat when she was pregnant with me so that she wouldn't get fat. I weighed 4 pound 5 ounces when I was born, which isn't too bad. The average weight is six to nine but at least I was healthy. I am after all still here. Back when my mom would tell me to be like her I would roll my eyes, I didn't want to scale down my portions. I guess someone has talked to y mom about weight being a touchy matter because now she tells me I am beautiful as I am but she wants me to loose weight for my health. She has been telling me horror stories about diabetes. I am not that big, I'm not obecesse still when she tells me these things I get worried.
I guess I want to loose weight now partly for my health and partly for my bikini bod that I dream of. I drank smoothies for breakfast for a week. I have stopped eating out, I was big on eating out. I think I ate out most of the week. I have stopped drinking soda, I think I haven't had one for about two weeks. I have even attempted to start walking more. The Thursday before last I even went hiking at Runyon Canyon. This Thursday I am suppose to go again, I think I'll try to catch a free yoga class too. They have free yoga classes three times a day pretty much everyday. Anyway the point is the weight isn't just melting off like it just packed on. Why is this so, why is the world so unfair?
Sigh I guess I'll just have to keep working on the bikini bod I am determined not to go back to all my bad eating habits this time. Soon I hope to have this body.