Hello,
1) Go to WooCommerce > Settings > Accounts & Privacy > check Allow customers to create an account on the “My account” page
2) Use WooCommerce tracking form shortcode to add that form https://docs.woocommerce.com/document/woocommerce-shortcodes/#page-shortcodes
3) To edit the Newsletter go to Theme Options > Header builder > edit the Newsletter element and add the content according to your needs http://prntscr.com/uxo848 We used the Static Block to show the content https://xstore.helpscoutdocs.com/article/47-static-blocks
Regards
