Losing is part of successfully trading. If you treat losing as part of trading then you are an experienced trader.
I agree, no pain no gain. If you won't experience lose then you won't learn anything. Making mistake like losing can be acceptable once or twice because it taughts us a lesson so we will do better next time. If you won't make mistake you won't grow. You won't develop your skills in trading. Or other skills you have.
The one thing that is best about bitcoin is that it is forgiving , dont be afraid to lose some because bitcoin has a rising value so the amount that you spend comes back whenever the price goes up , and losing is a part of earning the ropes , not just in the bitcoin but also in the real world , so never be afraid to try .