Also, if I may, recommend two videos to watch which is what got me into Elixir in the first place.
1. "The Soul of Elixir and Erlang" - https://youtu.be/JvBT4XBdoUE ; this fast-paced talk by Sasa Juric will highlight exactly what is special about Elixir/Erlang in terms of fault-tolerance and scalability
2. "Using the Beam to Fight COVID-19" - https://youtu.be/cVQUPvmmaxQ ; this highlights a real-world use of Elixir and the speciality of how the BEAM works using an actor model which I found fascinating. Should get your excited about the possibilities of this language.
3. "The Do's and Don'ts of Error Handling" - https://youtu.be/TTM_b7EJg5E ; this talk by Joe Armstrong, inventor of Erlang, again highlights the shift in thinking about error handling and failure recovery. Not Elixir specific, but since Elixir has it's roots in Erlang it's well worth listening to this talk, which is conceptual and not code-centric.
None of the videos above are Phoenix or LiveView but they should help build some concepts in your brain about why you want to go down this learning path of Elixir and Phoenix, why it's different. I listened to the first two, and I couldn't stop thinking about them, personally.
A last thought I would give you as you're going through any training material or topics, I cannot recommend strongly enough. Consider this pattern: download LiveBook (https://livebook.dev) and create a notebook for each lesson or major topic you're learning. Gives you a great way to learn, take notes, experiment and keep the history rather than just using iex at the command line all the time. I've found this greatly accelerated my active learning, as it's easy to get into the passive learning loophole of just regurgitating the code in tutorials and not stick the concepts into your brain.
Best of luck!