best advice, do not trade any leverage okcoin, bitfinex, kraken etc.
if you want to make money, just buy + hold
Absutely right. Just buy biycoin whenever the price is low and wait for the price to increase, if I were you be patienly wait for at least a year before you withdraw it.
It is okay to trade in any coin that you've seen that the performance is good in the padt months. Just be vigilant which coin you'll invest.