just smile when you lose, you'll feel better.
i lose many trade all what i do is shutting my computer, keep away from trading a while,
or i keep waiting for the market until he's health's back then i sell and i start again.
or if i buy an alt and i see it's dropping down i activate my stop loss option.
Good luck in next time.

To relieve sadness that's how to smile in sadness and calming for a moment about the harm