It is highly recommended to have a look at the tutorial videos. They give you some feel on how the application works basically.
New videos will be added from time to time so it might be a good idea to subscribe there.
Also it is important to have a look at the docs pages. Reading tons of text is boring, but the docs are a great reference to quickly get an overview on certain menu entries, tools and functions. This documentation is also part of the software package that is installed on your computer. As usual you can use the F1 key to jump to a topic that explains the currently opened dialog window to answer questions that you may have.
Use the community space to find answers for specific questions, ask the community, report feature requests or problems or share your tricks and work.