Hi Joao,
Trading goes through periods of gains and period of loss. In the long term with our EAs the gains will be greater than the losses. Give it a few weeks and you should see some nice profits. I have a demo FTMO account I share in the Prop Firm area of the forum where you can follow my results. In this account it did good for the first several weeks and made a 7% profit. Then over the last month it as lost 1% giving me a total profit since the beginning of August of 6%. I expect in the months ahead this demo account will once again provide some nice profits. Successful trading comes with time so hang in there!
Alan,