Please help me chancing in Philips andover ,Exeter and Chaote rosemary school

Unfortunately most of us have a foggy, at best, understanding of how foreign applicants are judged and admitted. Do your best on your applications, maybe have someone who is a native English speaker edit your essays with you.

Other than that stop worrying about your chances as seen by total strangers here. We don’t really have any answers beyond “you seem pretty solid.”