I have read and heard that one can earn and make good money with trading bitcoins.I also want to give it a shot.Everyone says the basic rule of trading is buy low and sell high but I am confused because which ever exchange I try,the buy rate is always higher than sell rate.How can one profit if sell rate is less than buy rate.If I buy at $390, the sell rate is $380
yes you're right, main rule of bitcoin and every other crypto is to buy cheap and sell expensive, let's say if you bought your bitcoins at 390$ each, don't sell them for 380$ next day, you have to wait for right moment, like huge price rise to 500$ or 450$ and then sell