I’m not going to tell you what to not write a trauma dump essay, but I would not spend much time on what happened when you were a kid. Please consider reading those resources I posted, and make sure an English teacher and/or your HS counselor reads your essay before you submit it. College Confidential also has people who will provide essay feedback.
https://talk.collegeconfidential.com/t/follow-these-steps-to-get-free-essay-feedback/3645578
I would also strongly encourage you to take an SAT or ACT, some schools on your list would really like to see a score.