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Having the right knowledge will guide you to increase your chance to succeed. Though it's not a guarantee that you will always have a winning trade, but the chance to have more winning trade than losing one is very possible to take place.
Initial knowledge is really needed. Plunging into the world of trading is not an easy matter, because trading requires basic knowledge of how to trade correctly to make a profit. Trading will not always win, but even so we must also be prepared to minimize losses or losses that can occur.