Hey Katy!
Since you're relatively close to your goal, you might want to check out our Featherweights forum...it's specifically for people who are starting pretty close to goal. We also have a great 20-somethings forum, for those in your age range.
Do you have a specific eating plan? Exercise is great, but usually, weight loss takes a combination of both eating and exercise. We have a lot of subforums by plan, to, so do some exploring.
I can't wait to get to know you better! Keep posting!