Thanks guys! Sorry I haven't been able to write back yet, my power's been off. :/
The 55 lbs actually came off relatively easy, I didn't really have to restrict my diet much, I just had to exercise. That's definitely my biggest problem, I don't get enough exercise. I'm already out of high school, but not yet in college and I don't have a job anymore, so I'm just hanging around the house all day.
That's a big part of the reason I lost weight actually. This time last year my family moved to the country so I started getting outside more often. But then winter came, and I stopped going outside as much. It's still pretty cold here, so I've been trying to think of exercises to do indoors. We don't have any exercise equipment. I was doing yoga and belly dancing, which was pretty fun, but what I like about going outside and just walking is that I don't have to concentrate on it; yoga and belly dancing require me to pay attention to what I'm doing.
So I don't expect this next batch of weight to be hard to lose as long as I stick to exercising. I'm relying a little more on my diet now though, so that should definitely help. My stomach still can't handle much, but I just bought a 12 pack of sugar free jello snack packs with 10 calories each, so I'm set for a while.

Right now I'm just counting calories and trying to stay around 2000 a day, but I'm open to suggestion, I don't have much clue what I'm doing just yet.
So to sum it all up, my goal is 250lbs by the middle of my first quarter in college (around October or November), and my minigoal is below 300lbs by the end of April.