Considering in 6 months ETH will be unmineable and the rest of the coins will remain extremelly unprofitable due to difficulty, you have to be really dumb to start mining at this point.
You will probably not even be able to ROI your equipment in 6 months, and more than likely you will have to sell it at half the price you paid for it if you need the money.
NEW MINERS are the NEW MORONS.....
The biggest profit in mining is obtained in a bear market. The difficulty of many coins will drop a lot after the end of Ethereum mining, because the miners will sell video cards. If the light is inexpensive, then it will be possible to accumulate coins until the next good market.