After years of hard knocks and monitoring support,

Sometimes I really can “feel” that a coin is about to explode soon,
But the problem is—I just can’t hold on.
Once I enter, I don’t move; once I enter, it pulls back; once it pumps, it immediately turns around.
Either I stop out, or I make a plate of pork knuckle rice and run.
Often, when I look back later, I find that what I sold was already up several times—or even tenfold—more than a few times.
How do I fix this? ?