If you go to phpMyAdmin, look for wp_users or a variation of the name. When you find your username, click on the edit button.
You should see something that says user_pass and yes, it will look like a string of characters. However that’s your encrypted password.
Change the encrypted password to a plain-text password, and make sure to select MD5 on the dropdown, located to the left of the textbox. When you’re all set, click the go button on the phpMyAdmin page.
Then when you login, you should be able to use the new password!