There are two main parts in a PCB. You need to create a schematic and a PCB document.

Altium’s Layout:

• Projects column - left side column - interact with your existing files and make new ones here
• Panels button - bottom right corner - this has the panel options which will pop up on the right side of the screen when you click on them
• Top ribbon - includes things like File, Edit, View. This will be where you find some tools
• Main workspace - Middle of the screen - where you interact with components, and create your design
• Workspace top ribbon - Top of the workspace, a little floating ribbon with buttons that help you build your circuits. Go here when you want to wire or route things or place text.
• Properties panel - If you click on a component and click enter, it will usually open the properties panel where you can edit stuff about the component and rename the part and any pins or other things.