1) Leave the Forex trading?
2) Continue with the trading methods?
3) Change the methods?
4) Give more time to practice on the demo.
Try to leave the platform for a while to refresh your mind. After everything is ok, you can adjust something from your trading system and run a test on a demo. If you don't want to waste time while running a system in a real account, you still have some strategies to test on the demo.
Any suggestions?