I dont have much knowledge on mining, it doesnt caught my interest as well for I guess it will take time to make profit out of it (i dont know, but thats what i believed). Why not invest it to buy half of your money with btc for long term purposes and half with altcoins for short term. Btc has been continously rising its value due to number of demand in the market, and as well as those top altcoins they make a good profit as well. ETH, wave, doge and etc. Those are some good projects to put your money in.