Cannot see any movies

New to Plex, s apologies if its a dumb question.
I have just bought a month pass expecting to see a list of movies where I can click and view.
I have downloaded the Plex app.
Help please

Plex is not a file sharing website.

https://support.plex.tv/hc/en-us/articles/200288286-What-is-Plex-

https://support.plex.tv/hc/en-us/sections/200056078-Quick-Start-Guide
https://support.plex.tv/hc/en-us/sections/200055547-System-Requirements

Additionally there is this support page
https://support.plex.tv/hc/en-us/articles/207197477-Is-Plex-like-Netflix-

Is Plex like Netflix?
Unlike Netflix, Plex does not provide streaming movie and TV content to you. With Plex, you can:

  • add your own media to your Plex Media Server
  • access that media using multiple Plex apps (mobile apps, connected streaming devices, Smart TVs, game consoles, web browsers, and more)
  • stream that media wherever you are by connecting to that Plex Media Server even if you’re not home
  • “bookmark” online videos from sites such as Youtube or Vimeo so that you can access them through your Watch Later queue in your apps
  • install Channels on your Plex Media Server that let you stream available content from websites such as Apple Movie Trailers, Revision3, TED Talks, and more

wow good thing you didn’t purchase the lifetime pass