I am starting trading some month ago.Bought some alta coin but now all alta coin are down and i donot understad what can i do?I get a big lose if i sell this.So how control my mind ? 
I think the best thing to do in a condition where a person feels emotional is to take a deep breath and count to 10 until the he or she calms down. In order to avoid doing drastic decisions, we must calm ourselves first. After, that you can always talk to someone about it and then it will feel way much better.