Do you want users to have (1) a complete blog or to be able to post posts and make pages on a website?
(1) You need to install WordPress as a multisite. This way a signed up user can create a complete website. You find here more information on this.
(2) People can sign up to ‘normal’ WordPress sites and give comments to posts. They can also have certain roles and capabilities. For example, one can be an author and create their own posts.
I hope this helps you to get started.
Thank you 🙂
But can i make it only possible to make post but not pages.
Since I only want users to be able to post inside my pages
As example: if im a user i could post my own jokes into the joke page.
Take a look once more at the page I refered to about user capabilities:
Contributors and authors can only edit posts and not pages. Authors can publish posts, contributors do not. An editor can create and publish pages.
Check it out in practice, that way it is easier to understand and remember.
