Actually i think there is no time frame to practice with demo account. As long as you will trade with demo account, it will give the confidence about trading. You are the referee then to take the decision whether to trade or not because of your confidence analyzing how many trade you had in your favor. It can take you three months or six months or even longer...

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Thanks for sharing the true things. I think nobody should open an account and start trading on forex influenced by any person. Because, i think, the person who want to trade should have self strategy to trade, should know about market movement. It's not so easy but anyone can get profit from forex but need to know about forex properly.