I took ten or more tylenol's, the 9 of mums anxiety pills she never uses, & 3 of my sisters ondanestone. is this a well enough overdoeslikely to kill?

No one will tell: You what to take to harm yourself. You could do serious damage. You need to tell your family how badly you are feeling and get help. You are just 16 and things may seem difficult now, but with help you will feel better. If you are afraid to tell your family call 911 or a hotline for teens who are feeling suicidal. They will be able to help you.