Hello @Pedro Monteiro,
1. You can use the shortcodes of the fields you used in your form (http://prntscr.com/vk054l) and place them in the areas you want to show (http://prntscr.com/vk0401). Since there is no element in your form with the shortcodes [your-name] or [your-subject], you will only get the shortcodes.
We recommend that you read the documentation carefully (https://contactform7.com/setting-up-mail/).
2. If you would like the registration form to appear in the Login form, please navigate to the Dashboard >> WooCommerce >> Settings >> Accounts & Privacy and ensure that the option to create an account on the “My Account” page is enabled. (Please refer to the image provided: https://postimg.cc/c6fHbcWJ).
Best regards,
8Theme’s Team