How to force https:// and www. with htaccess even when requested from https://

I've looked everywhere and tried the top results from Stack Exchange but none of the solutions actually solve this problem.

If user types:

example.com/secure
http://example.com/secure

it redirects to https://www.example.com/secure <---GOOD!

but if the user types:
http://www.example.com/secure
www.example.com/secure
https://example.com/secure

it redirects to http://www.example.com/secure <---not good

I need to force both https:// and www. regardless of how the user types it.

Here are the solutions I've tried:

RewriteCond %{HTTP_HOST} !^www\.
RewriteRule ^(.*)$ https://www.%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
RewriteCond %{HTTPS} off
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

and

RewriteCond %{HTTPS} off
RewriteRule .* https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
RewriteCond %{HTTP_HOST} !^www\. [NC]
RewriteRule .* https://www.%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

Please, can someone suggest an ultimate solution for this?