The same experience with me, if I buy a stock it falls and the moment I sell at lose, it's price rockets. Had this experience with HAL, invested very few shares few months back <2500/-, sold at minor profit, now seeing it's price give me a kind of uncomfortable feeling deep inside.
Reason why I shifted into Quant mutual funds. Looking for focused funds and contra funds now to invest at a comfortable entry point. Also, looking for smallcase.
However this is a known effect, it's about investment discipline they say. Whatever, am not good at it