When I customize the my account page in woocommerce, I can edit right side section by creating my_account.php inside my account folder in woocommerce. But In left side it is showing "Define your 'My Account' navigation Apperance > Menus", After seeing this I tried to create menu called "My account", but there was no theme location existing, so I create a theme location called "my account menu". And I assign "my account" menu with theme location "my account menu".
I don't know how to connect this menu to my account page in woocommerce, the page again showing same "Define your 'My Account' navigation Apperance > Menus".