When you wish to earn money using the bitcoin you have to be sure that the price of the bitcoin is going ot increase becuase when you're on that point you wil make most profit you know price risings could be good for the worth .

Awaiting the mainnet to mine  )can't wait

When will there be an ICO or something like that. Or when does it hit the exchanges?

Any forex means value. So if you have something useful then you've a good thing. Bitcoin is really a forex but when you buy a BTC then your currency gets an asset in your electronic wallet. That means that now your asset (btc) is by using a certain value and you may go shopping, can trade it with other cash or reserve it to ensure that its value might rise against other currency.