please help, im really in trouble right now?

[Tubagus]

So i stupidly forget my password on a website that contain my very urgent document, my brother will come tomorrow to retrieve it and tonight im really in big trouble if i dont recover my password, the other f*cked up fact that the website just provide username and password to fill, there isnt any other like an option if you forgot your password or an email verification, JUST USERNAME AND SOME GOD-KNOW-WHAT PASSWORD blank field and if you enter the wrong one there will be only 'your username or password is wrong', ive try it since 4hours ago to fill it anything i know, my heart beats so fast now, i started to enter my anxiety phase, i wonder is there any software or some helpful tricks, please anyone help me, every second counts, please!!
very apreciate for your help buddy, @beedo i dont have any file that can reveal even a single letter or number :'( , @pian the web administrator must be already sleep right now, i cant contact anyone right now thx :"(
@tom g check your inbox, i hope you can do it for me mate!!

[Beedo]

First off, calm down. It's not much of a good website if it doesn't have that options. Plus, do you have the files saved on a computer? Sorry I'm not good at this

[Pian]

Maybe nobody can't fix that, your file only in you account,That is really important so Contact web developer to fix that!! but i don't have any software like this!!SAD ) - ;

[Tom g]

If you give the name of the website I maybe able to help you?