Non-editing software: audio and video, Sony Vegas, Adobe Promiere.
Post-synthesis software: Adobe After Effects, Nuke
Then 3D animation software 3Ds Max and Maya are all composed of these three windows.
Among them, the timeline is the main body of your production, and all the contents you arrange are in the timeline.
The preview window is used to preview what you have done in the timeline.
The project window is used to import your materials.
Learn to edit your content in the timeline, then preview the window, and you will soon start using the software.
At first, I suggested using Sony Vegas Pro 10.0, which is very professional and easy to use.
The requirements for computer configuration are not high. Nowadays, many people at weddings also use Vegas.
The general operation of the software is to go to the tutorial by yourself and ask others, who can only help you with the details.