Open TokenPocket, click [Details] on the upper right corner, click [Reset Password] on the Wallet Details list. You need to enter the corresponding private key or secret recovery phrase of the wallet to reset your password.
If you've lost your private key and secret recovery phrase, you can only try to enter the password to unlock your wallet. There is no limit to the number of times the password can be entered. No one can help you to retrieve your password, private key or secret recovery.