you need to set the your targets. dont go with the flow, dont follow the crowd. just make ur profit target and right after the exist dont even bother to look at that coin again
When there is frequent movement of coin price and all technical analyses become fruitless and wrong, you shoul stop trading instantly to avoid loss. Say for examply when chart analysis like buy signal an sale signal is prived wrong repeatedly, you must stop trading. It is the best time to quit and observe vigorously.