@Joseph Fenner good on you for the ambitious goal but I would focus on getting my first property. That sets the tone for learning about the future.
All the advice here (and there are great insights) will not substitute going out and getting a deal.if you are serious about a future in RE, you will learn from your mistakes in your first deal and you will use those mistakes to help you in your second deal and so forth.
Most importantly you will if you enjoy the journey of RE investing. Cash flow/FIRE is awesome and most investors start out with this goal in mind but RE investing is work and if one doesn’t enjoy walking the path that RE leads to, RE investing is just another cruddy job. I buy rental properties because I love the process and the hours I put in do not adversely affect my W2 career/time with my family which I enjoy even more.
Find your WHY and then get that first deal done. If you end up being hooked like many investors here are, your desire to learn strategies to achieve your goal will only grow.