Everyone of us have been int that kind of situations that you have describe. Its really sad that we regret selling our bitcoin or altcoins early. The main thing though is how you rebounded from such miss opportunity. Others have gotten out because crypto's failed to deliver them the ever promise of getting rich very quick. While most of us decided to stay in the game because first, we do love it that's why we take losses and the enjoy our winning, but importantly, it gives us satisfaction when we go all green and made the right decision. It's been a part of my life now and I'm not turning back. Its a game in like like you said, so we should prepared to take losses sometimes.