Actually it is not a work of risky way but it needed a long patience instead of sudden profit .
I am in trading from 4 month and my experience is saying always put your sell order on definite amount on advance . Secondly your advance order for sell should or price 40% more than your buy price .
What do you do if the price doesn't go up 40%? For example, if it falls 80%? Not happy.
How will you feel if the price goes up 200%, but you sold at 40%, because that was your "target"? Not happy.