How to Train & Manage Trading Psychology?

[Suba1]

A trader must not only have strong analytical skills/abilities but he must also prepare himself both morally/mentally and materially/capitally. If we enter trading with borrowed capital, anxiety often occurs, trading must be able to make a profit but what often happens is the opposite, trading makes a loss, because trading psychology will have a big impact on decision making and thinking. So in your opinion, how do you train and manage trading psychology?