I can't get to my forms (applications) because I don't know my username and password.

I can't sign in.

I cannot find an account related to your email address, the one you used to open this post, could you please provide us a link to one of your forms? So we can find your account and you can restore your password. 

But we will need that or the email address you used to created your account, otherwise will not be possible to find your account.