Here is the step by step guide on how to reset your password:
Step 1: Please go to the Profile page.
Step 2: Tap on "Sign Up / Sign In to Publish" button at the bottom of the page.
Step 3: Tap on "Log in" link in the most left corner of the page.
Step 4: Tap on the "Forgot your password?" link.
Step 5: On this page, you will be asked to enter the email you used to create a profile. Please enter it and hit "Send password."
Step 6: Please check your email right away and follow the link in it. Please, note that it all should be done through your device (not a laptop). The link will expire in 24 hours.
Step 7: Please input your new password and tap on "Reset password".
Step 8: Now you can log in with the new password.
See the screenshots below for better understanding.