First, don't put your all eggs in one basket. find out some different project to invest your Eth. Better to go for a very good presale and buy some coins with discount. And make sure to keep some as Eth. You have not revealed how you earned these coins. If you earn those from bounties, look some more good project to participate.
I think join private sell is more than good than pre-sale and maybe that is the fast way, but the risk is so high. Prices dropped so deeply after the ICO, listed in the exchange require so long and a scam. that's what happened at this time, many of ICO cannot be trusted.