That would depend on your risk tolerance. A leverage of 50:1 means that a change of 2% in price could wipe out your account (50*2=100%). Don’t over leverage your positions and keep using a leverage that is suitable for your trading style. Usually a high leverage is used with small accounts or for short term trading methods such as scalping (as price fluctuation is limited) while long term trading systems such as trend-following (since price can fluctuate greatly) or large accounts use a lower leverage.