Don't try to build a mining farm if you really want to earn bitcoin then much better if you are going to trade that or invest that into bitcoin hold them waiting for the price increase once it increase sell wait for the price again to be decrease then buy simple but make sense.
It is better off to build and operate the bitcoin mining farm with 2mils in hand than getting into trading. One wrong move and suddenly you and your 2mils are no longer together. From the safe side it is better to buy bitcoins from 2mils and HODL for really long time. No danger or loss. With mining if OP has nack for technical aspect of mining then it could be profitable. Factors that matter are area where he want to build and operate the farm of miners. Because electricity is not cheap when it comes to mining. The electricity is required not only for running the rig but for running ventilation/cooling as well.
Thus compared to the trading mining is on safer side. Best option is HODL though.