This was happen to me several times already we can't predict what exactly happen to the market.  I notice that Everytime i sell my coins most if the time its price goes up though it is dis appointed for making bad decision but this is trading market everything is unpredictable just take every mistake as your learning growth and avoid to happen over and over again. Being disappointed in ourselves always happened several times every time we didn't achieve or meet our goals, especially when you know to yourself that you did everything to make it happen unfortunately it didn't