You can reset your password by going to https://app.newkajabi.com/login and clicking on "Forgot your password?" below the login form.
From there, you'll be brought to a page where you'll be asked to enter in the email address you used to create your Kajabi account. Once you've entered your email address, click the "Send me reset password instructions" button. You should receive an email shortly thereafter with instructions on how to reset your password.