Automatically Restrict Content After 7 Days

Hello,

How are you today? Please I want to start a new blog where I will be posting an article daily.

Now what I want is that visitors to the website can view the latest posts but they cann’t view posts that are more than seven days old.

They will need to sign up to be members to be able to view posts that are more than seven days old.

I want to make it automatic so that as I posts articles, the articles that are not more than 7 days old can be easily read on my website but immediately these articles are more than 7 days old, they will be automatically locked only allowing paid members to be able to read them after signing in.

I don’t want to manually lock/ restrict the articles that are more than 7 days old. I need this to be done automatically.

Also when these articles are locked, the visitor to the website without signing in should be able to see the blog title, blog image and the first two paragraphs before being asked to log-in to continue reading the article.

But if the person isn’t a member, he can then be shown the link to sign up for a 7 days trial membership.

Please do you have any ideas on how I can do these? Or plugin which I can use to do this?

Thanks.

Chinedu