if I have a $ 100 account and I want to double that money then I work with one lot size means 1pip is 1 $ then after 100pips my account will double but this is really very risky with this action maybe we lose all our money in the forex market so I suggest not to choose shortcuts in forex to get big profits. and According to the management of the money you want to produce, I am talking about the volume lots that you trade together using, if your account is 1000 $ to be an example so you trade together using 2 $ for each of these pips indicating that you want 500 pips to double your account