@Jason Stoltzfus Welcome to BP! I love your goal and I think that by starting at your age, you could achieve it and then some.
Obviously books, podcasts, and BP will help you get almost all of the education you'll ever need. Are you intending to stay in Lancaster? If so, I'd advise you make great connections with local lenders, contractors, etc. If you have a credit score built up already, I think that an FHA 203K would be a great way to go for you. Although you have to live there for a year, you could try to find a duplex or quadplex. While living there, you can still do other deals elsewhere with conventional loans. Depending on your cash reserve situation, you can always work to partner with family/friends who can bring the cash to the table until you can eventually buy them out.
I'd also advise sticking to your current job until you can maybe start selling some homes as an agent and earn some commissions to put towards investments. You've got a long career ahead of you, best of luck!