Invest in a hardware wallet like Trezor and store most of your coins in there, until you are ready to trade. Do not send all your coins to any of the exchanges at once. Send some small amounts and trade them and rinse and repeat until you have accomplished your goals.
We first saw Mt Gox and now Cryptsy, so it seems these exchanges just cannot get their act together even though strict regulations are enforced since the Mt Gox situation.
you trust only usable bitcoin members and you achieve only achievement not for money earning.