Did you forgot your twitter password? You can recovery your twiiter account on the following link
https://twitter.com/account/begin_password_reset Just Enter your email, phone number, or username and you will get link for reset your password on your email. If you can not reset you should to contact twitter support. You can do it here
https://support.twitter.com/forms If you have any other question let me to know I will try to help you to back you twitter acc.