Making an ea from my strategy

Hello,

i would like to make an ea from my strategy

my strategy is:

if there is candle and a candle came after it but in opposite direction and the second candle goes 25 % from the size of the previous candle s body it creates buy if the second candle goes up and sell if the second candle goes down and close 50% of the previous body candle and stop loss is 50% of the body candle

make the percent variable

make an auto lot size

make minimum body candle points so i put the minimum candle in points which be accepted

thanks