@medli If I lose 30 pounds from what I weighed this morning, I'll be 4 pounds heavier than high school graduation. :-)
But seriously, ask your parents if you're still covered by their medical insurance. Maybe you can talk to someone who can help you feel better about yourself. as well as a "weight management" specialist if you really need it. (From what I hear, every young woman thinks she's too fat, even if she's six feet tall and 100 pounds.)
From what I know of you (limited, I know), you're a worthwhile person. You just don't know it.