<human>: Hello, Reddit... 20 y/o female here...

Basically, I got on the depo provera birth control shot when I was in High school, and between the ages of 15 and 18 I went from 125 lbs to 225 lbs. I felt awful, so I got off the shot. In my first year of college, I lost 30 lbs without doing anything--just walking around campus, I suppose. I gained a few pounds over the summer because I stopped walking places and ate a lot of junk.... 

I just finished my second year of college. I am finally feeling the motivation and inspiration build, rather than self pity and excuses. I am ready to begin my transformation. I am sick of all the names I try to label myself to feel better... "BBW", "Vuluptious", "Curvy", and a more recent favorite, "hourglass with a little extra time". There is nothing wrong with having curves, and I hope to keep mine for the most part... but the rest, it's time to get rid of. 

SO, the point of this post is, though I feel motivated right now, I am terrified that it won't work or I will fail.. I am terribly addicted to soda/coffee, and to make things worse, I work at McDonald's. I guess I am looking for some helpful stories or tips/tricks that have worked for others.

Summarize the given text in a few sentences.
<bot>: I got fat in high school, lost some in college, and I am ready to keep going; how to stay on track?