If I could change only one thing, it would have been transferring to public school when I was 11. I should have done anything I could to prevent it, because the severe bullying triggered my eating disorder, which helped ruin my health and flatten my self-esteem, which kept me in an abusive relationship for five years, which led to a nervous breakdown, which has led to massive therapy and hospital bills. And I still have horrible health.
Actually, if I could change anything at all, it would be my mother dying when I was so little. Then I could have continued in home school, where I was progressing rapidly, and I would probably have a job right now. And, you know, I would have had my mother around for conscious memory.