cannot get into my hotmail and need it for my college information!!!

I changed the password on my hotmail while on spring break in texas and then i tried to log in and hotmail said someone else might be using my account. I dont have the other email any more to get a security link send to, i also dont remember the answer to my question since i made this email when i was 12. I filled out around 15 questionnaires and i still cannot get into my email, i have given all the possible information and time is running out. I need to get into my email for my financial aid information, What can i do to get back into my original hotmail account?