You are right about the statement that you made,that losing is part of trading,I can really say that losing is one of the most important thing that should happen to anyone who wants to venture into trading.If it is smooth from the beginning,you won't know how to trade,it is only when you lose,and come back to re-strategise, and plan again that you can be a successful trader.Those who didn't lose from the beginning,will lose when they have already invested so much in it,and maybe that time might the the highest lose so far in their life.It is good to lose so that you will get enough experience.
There are many hurdles to face while trading. By overcoming these hurdles, one can learn a lot about trading. Newbies often risk their money by making mistakes and lose money. So I think those who can start trading with good trading experience from the new situation will be very experienced at one time and who themselves know when the market condition will be bad and when the market condition can be good.