Dont worry too much about the bigger picture - concentrate on gaining your ether or BTC or whatever you choose as your trading pair for now i think, we will have plenty of time to worry about overall market prices when we need to cash out to fiat again.

Make sure you do not invest anything you cannot afford and you wont be forced to cash out at a bad price, but instead wait until the ETH or BTC you have gained is at a price that YOU are happy with. Just my 2 cents :)