Redirect a folder to a subfolder - .htaccess

Question

I am trying de redirect these types of URLs :
https://www.example.com/my-account/VARIABLE-FOLDER/
to
https://www.example.com/my-account/VARIABLE-FOLDER/home/
I am not really familiar with complex redirects with htaccess, can someone help me ?
I tried this but without results :
RewriteRule ^my-account/(.*)$ https://www.example.com/my-account/(.*)$/home/ [R=301,NC,L]
There are all my htaccess rules at the moment :
RewriteEngine On
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
Thanks by advance
UPDATE #1, i just tried this :
<IfModule mod_rewrite.c>
RewriteEngine on
RewriteRule ^(mon-compte/.*)/?$ https://vide.ecoles-libres.fr/$1/home/ [R=301,NC,L]
</IfModule>
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
And i am now redirected like that :
https://example.com/my-account/VARIABLE-FOLDER/home/home/home/home/home/home/home/home/home/home/home/home/home/home/home/home/home/home/home//home/

Answer 1

With your shown attempts, please try following. Please clear your browser cache before testing your URLs.
<IfModule mod_rewrite.c>
RewriteEngine on
RewriteBase /
RewriteCond %{HTTP:CF-Visitor} '"scheme":"http"'
RewriteRule ^(.*)/?$ https://%{HTTP_HOST}/$1 [R=301,NE,L]
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
RewriteRule ^index\.php$ - [L]
##Add an additional condition to check about URI here.
RewriteCond %{REQUEST_URI} !/home [NC]
RewriteRule ^(my-account/.*)/?$ https://www.example.com/$1/home/ [R=301,NC,L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>