Hello Edu,
I always suggest the students to test sometime on Demo account before placing on real account. It is important to understand that it is a personal choice and responsibility when one will place the EAs for live trading.
It is good to test it on Demo account until the moment you feel comfortable for live trading.
And yes, you should collect more data, with the time your strategies will become more robust. Also, during the time you collect you can practice with FSB and create more strategies.
Kind regards,