Simply analyze the strategy and how you could do it better or differently.

Focus on one or two target markets, get familiar with the numbers, and use tools like BP calculators to analyze potential properties.Whether you start now or after graduation depends on your bandwidth, just have the right systems and support in place first.

Use the BP tools to analyze a deals.

With the newer 5% down conventional loan for owner-occupied multifamily option, I generally advise people to start analyzing from there if they want to house hack a multifamily with minimal down.  

If the prop 13 benefit vanished tomorrow, I would analyze whether I should sell.  

I would suggest learning how to analyze property.

BiggerPockets also has a calculator to analyze deals, and I highly recommend you start this as soon as possible, even if you are not ready to buy.

Values go up, tenants pay down the mortgage, you refi, and keep buying.Don't over analyze looking for the perfect deal. 

How is your research analyzing all that?

So, come time to buy my first investment property Ill be competent in analyzing deals