Hi @Waseemfatima; welcome to our Community and happy June!
I'm sorry to hear you're having issues with logging into your accounts.
If you don't remember your password, or you need to reset it, you can visit our website here:
Just enter the email address associated with your Dropbox account(s) and you'll then receive an email from no-reply@dropbox.com with the steps to reset your password.
In case the email doesn't show up after a reasonable amount of time, please check your spam folder to ensure that no-reply@dropbox.com is not blocked.
From there, you can also add no-reply@dropbox.com to your address book and request another password reset email.
Let me know how it goes!