This is what I imagine what the news feed / discover page would look like. I could have made this look a lot different, but I was trying to think of something realistic for someone to code and not make it too hard on them.
The DesignI added a button in the right hand corner to create a new post (video). Underneath the navigation would be a shortcut toolbar which users would be able to customize to their liking. They would take options from the hamburger menu and add it there for a quick access. The rest of the page is pretty self explanatory. Enjoy !
If you missed my other design posts.