Losing a certain amount of trades is fine since most people lose anyways.
But just be aware of your loss cap though - and if theres a contingency plan if you do lose all your trades.
You cant lose in trading if you have some knowledge of the coin you are trading and some knowledge of trading. Instead of making a one large order, it is better that you make small orders of buy and sell. In this way, the risk of losing will be minimal.