Market movement + your actions = profit or loss.
Nobody can control the movement of markets, but its in your power how to trade. When people lose money in trading they tend to blame others. "Others" can be big institutions, market, broker etc etc. The right way to handle loss is "taking responsibility for your trades". When you take responsibility, you will think, "how i traded to get a loss?" "how should i have traded better?", "What changes I can make to get profit?". And these will make you a better trader. Instead, if you blame others for your loss, then you will do the same mistakes which will give the same outcome.