Once you're ready, create a goal (e.g., "I will buy at least one single-family home, duplex, triplex, or fourplex before the end of 2019") and then do it.

As with any investment PML does carry risk, so investors must weigh their own personal goals and risk appetites against the returns.Long term (after that career of investing you mentioned) I see myself going more heavily into the PML/ LP route.

I give you credit for setting lofty goals and taking action so young but you  should  reconsider who you are learning from. 

FL appreciation - property is still fairly newish and don't want to miss out on potentially solid capital appreciation in next 5-10 years - assuming that happens-Other caveat is ability to sell in coming few months without paying any capital gains taxes, which will not always be the caseThere is no crystal ball, Appreciation is/was the goal but who knows if that will happen and at what rate realistically with increasing costs of ownership here.

My Goals: start out with a focus on LTRs with SFHs, self-managing and beginning locally in Memphis.

And I was very choosy to buy in neighborhoods of new builds that were not saturated with investors I paid more and they were not as cash flow gifted as others who were focused on cash flow my main goal was Go Zone and then when i went to exit 10 years later I could actually sell them easy on the MLS to owner occs and made a little bit of appreciation while my cash flow was neutral to maybe tiny positive but i saved close to 500k plus in personal income tax over the course of 3 years buying them before go zone expired..

The truth is, the dream is available for everyone if they just ignore the idiots and focus on their goals.

Understandably that's also not the typical real estate investors' goal - most investors want to leave the 9 to 5 job sooner and be financially independent early.

The first goal we have set is to 20 doors.

Keep pushing, and I’m sure that 100 doors goal is closer than you think!