Don't worry, just open an account on Poloniex.com, Bitrex.com, Bitfinex.com or Kraken.com (depending on the coins you want to invest) and read this: https://steemit.com/bitcoin/@cryptoeagle/great-time-to-pick-up-cheap-alts-what-percentage-should-you-invest-in-each-to-become-a-multi-millionaire-a-winning-index
regards
thanks!!