Venmo is extremely considerate and thoughtful of their users and provides alternatives in case you've lost your password. It is a simple process to follow and can be as follows:
1. Visit your Venmo account first.
2. The screen will show an "Forgot password" option, then you'll have to tap it.
3. Input your email address or mobile number associated with the Venmo sign-in.
4. Following the steps above, you will receive a link to the email address or mobile number that you have been registered.
5. The only thing you need to do is click the link and create an additional password for your account.