How can I remove registration option

Hello,

I want to remove registration option from my site so that all registration can be done through buying subscription via woo commerce. I have unchecked “anyone can register” under wordpress settings but I recently discovered that the “my account” section of woocommerce where product and billing details are shown give one an option to register if not logged in. please see ‘mywebsite’/dashboard to see what I mean. How can I disable that.

Secondly how can I edit login page and stop using wp-login

Thanks in advance