Thank you so much. Deleted for editing
Very compelling story. I am sorry you had to face so many unfortunate incidents and I hope you find a happier life in the US. I really liked your PS. Some people might criticize it as reading too much like a resume, but I think your jobs and positions strengthen your statement. Plus since you add so many examples of your personal reflection on your experiences I think it works well. I didn’t notice any grammatical weaknesses.
Overall I am glad you are applying to a school I am not applying too, because I don’t think my PS would seem very good compared to yours 
Good luck!
Thank you so much ! To be honest I thought its a complete disaster) lol) Especially first three paragraphs. Id greatly appreciate if someone could give me a detailed critique on those.