That's right buddy! Robot trading isn't about choosing one bot forever, cause as you have pointed out, they are honed strictly for the current situation on the market and can work out only in such conditions.One important consideration when using robot trading is the need for ongoing monitoring and maintenance. While algorithms can be very effective at executing trades, they are only as good as the rules and criteria they are programmed with. As market conditions change, it's important to periodically review and update your trading algorithms to ensure they remain effective.
This is where leverage comes to help. If you want to reduce required margin you can opt for higher leverage, however I would do that only if you fully realize that you can lose a lot and even everything. High risk trades require careful consideration of bad outcomes.To determine the maximum trade size for your account, you would need to consider the margin requirements and the maximum allowable risk per trade.