To change your password, log in and click on the Edit My Profile link as shown below. If you are on a desktop machine or a tablet, it will probably be in the leftmost column. If you are on a SmartPhone, you will have to click on the "horizontal stack" icon as shown below to see it.
If you cant log in and need to reset your password, please refer to the screenshot you took after signing up with all your account information as it will contain the email address you used to sign up. Go ahead and click the "forgot password" link as shown below:
If for some reason you no longer have access to the email that you signed up with, then contact me below with as much information as you can provide and I will reset your account: