If you are really serious then I will suggest you to invest in those altcoin which have much stability and  more secure and there is no chance to run away .
So my advice for you to invest in the ETH , ETC , DASH , Ripple  like coins . You can see the price of the etc is changed into 16 times more and about same thing happened with the other dash like coins , so my suggestion for you to hold these coins .
After the hold of these coins wait until the price get rise , if the price get down then don't get panic and don't get fear and sell .
Here after the investment you need to wait and should have patience until your investment results into profit .
Investment in multiple coins made the investment less risky so don't invest in the particular altcoin .