Actually, everything depends on what type of a trader you are. If you have recently joined trading community, then I believe you would better stay away from leverage trading, because it can easily lead you to huge losses, because of lack of experience and knowledge in trading. In my opinion, the most important task for you now is to learn and practice until you start earning money without any issues. If you are a professional trader or at least you already have certain results in trading then I guess 1:50 would be the most suitable leverage for you, beause it's easier to control all the risks and understand how do leverages work. Anyway, I advice traders to stay away the idea of using leverages because they might be harmful enough, despite the fact that they're profitable.