Hi Kyle, nice long posting you shared. I'm many years your senior, and so maybe this is more like what I wish I had done when in your situation.
I have one investment property now, which had been my primary residence when I bought my current house. That was inspired by the book the Automatic Millionaire Homeowner by David Bach, and probably one of the few smart decisions I've made with RE investing.
I also like to recommend a book to you here, The Richest Man in Babylon. It tells you that "a part of all you earn is yours to keep, and what you save must earn, and its children must earn". For me, I wish I were more persistent with my RE investing and taking more actions.
I like many BP podcasts, and will recommend episode 223 with guest Scott Trench (if you haven't seen it). The book Set For Life by Scott probably would be very helpful in your situation, particularly with his idea of building out this financial runway.
Best luck to your RE investing journey!