Does Genital Manipulation And Masturbation Cause Hymen Rupture?

hi doctor!i am 20 years old female...i just to ask about that if ma hymaen is still intact or is broken???...i fingered and masterbuted several times.i did not experienced pain or bleeding from the vagina.now i dont know is it still intact?..i am not involved in sports activities so it shouldnt be a cause.i examined ma vagina by using a mirror.i found a large vaginal hole with some small flab of tissues around it.but i still dont know is it hymen or not..now whev i insertr my finger in to the vagina it offers no resistence.but i havent fingered that much vigorously that it may lead to tearing...i am very much worried and confused....i cant visit to a gynecologist for examination...plzz help me