Sign in to your account and before you actually sign in right below where you put your password you will see where you can create a new password for the account. If you created a new account using the same email address, try using the username to sign in instead. If your are unsure about how many accounts you have complete an account recovery.
Here is some additional information on how to recover your account:
https://ttlc.intuit.com/replies/3302318
Hope this was helpful!