As a trader or a gambler if you don't learn to accept your loses you will keep losing, some traders have lost huge amount of money they won't have lost if they had accepted there lose and move on.
In fact, traders and gamblers indirectly understand the concept of profit and loss, winning and losing. If they aren't prepared for the potential outcomes, it's best not to try.
As many people say, never try trading if you're not ready. You'll only treat trading like gambling if you're not prepared. This is common for beginners, some learn from losses and mistakes and then move on to improve. Others become frustrated and give up trading despite experiencing losses.
The clear cut differentiation that abound between gamble and trading is in the context of luck. There's no way you depend on luck to winning your trades as in the manner gambling is viewed. However, as newbie traders the worse you can do for yourself while learning how to trade is not accepting losses as they are inevitable to come by. Every trader loss should be an experience gained and not being captured as just a loss of money. With each experience gotten improvement is built for profit making than more losses.