What is life of Crypto Currencies?

[Giolcr]

Hello.
I wonder how many month or years even ten years do Crypto currencies have?
I mean, December was a Boom month for coins...
And i am afraid that now i have not money to invest to coins
there are hundres of coins which value in summer was x and in December it is 50X and there are some which has 100times more valua...
Will it be such a opportunity after one year or two years?