If you have forgotten your password, you can press “Need help with login?” during the login process. Here you can choose email if you linked a valid one to your account. You will then receive a recovery including a link with which you can reset the password.
Unfortunately, it is not possible to log in through Instagram, Twitter, Snapchat, or phone number anymore. If you do not have any valid backup method connected to your account and you have forgotten your password, you will not be able to log in. If that's the case for you, please remember to add a valid email address to your next account!
Please also note that our support cannot help you in this situation either if you do not have a valid email address connected.