You said your friend just introduced you to real estate and you have been into bitcoin for sometime now, I believe you know about bitcoin investment how it works. there is no need for much explanation because by now you should have known that the volatility of Bitcoin and real estate are not the same. Bitcoin is profitable and also come with some level of risk expecially when the price start to dip, most people will not be patient enough to hold but sell it. My advice to you is that you should diversify your portfolio into Bitcoin and real estate if actually you want to go into it. I can not tell you exactly how you will divide the $2500 but you should be Able to divide the money without it affecting your emergency fund otherwise you will sell one of the investment you are about to start.