Varnish always shows miss on my website I have put all the cacheable=false and isScopePrivate=true and setNoCacheHeaders in my website but he still shows miss

This is the head of my website： Accept-Ranges: bytes Access-Control-Allow-Origin: * Cache-Control: no-store, no-cache, must-revalidate Cache-Control: public, must-revalidate, proxy-revalidate, max-age=0 Content-Encoding: gzip Content-Length: 28621 Content-Security-Policy: upgrade-insecure-requests; Content-Type: text/html; charset=UTF-8 Date: Wed, 21 Jun 2023 04:04:19 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: PHPSESSID=l1spnb7aft9fckj58u8qrehlhb; expires=Wed, 21-Jun-2023 05:04:18 GMT; Max-Age=3600; path=/; domain=www.instar.ro; secure; HttpOnly; SameSite=Lax Set-Cookie: X-Magento-Vary=091a9fa2c6d313546d7e81c15fe4cf7f3931e814; expires=Wed, 21-Jun-2023 05:04:19 GMT; Max-Age=3600; path=/; secure; HttpOnly; SameSite=Lax Set-Cookie: form_key=PMFgVNSYqhgRYnhC; expires=Wed, 21-Jun-2023 05:04:18 GMT; Max-Age=3600; path=/; domain=www.instar.ro; secure; SameSite=Lax Strict-Transport-Security: max-age=31536000 Vary: Accept-Encoding X-Content-Type-Options: nosniff X-Content-Type-Options: nosniff X-Magento-Cache-Debug: MISS X-Xss-Protection: 1; mode=block X-Xss-Protection: 1; mode=block