Somebody suggested me to invest 70% in BTC and ETH, and the other 30% in alt coins which look promising.
Just invest 50% on bitcoin, and diversify the rest on this coins:
*Monero; this has been increasing a lot, this is probably the "real" thing that Satoshi wanted to create.
*Litecoin; Bitcoin but with lower fees and faster transactions, and it is promising.
*EOS; excelent founder, the price is low, it can easily be more than $50.
*PIVX; The only project that has been running before it got launched, i have a lot of pivx on my wallet.
Dont take advices from newbie users, they will probably suggest you to put money on shady ico's and you might probably lose everything in there.