Have you ever stopped yourself saying NO? Repeatedly? Even if you can't accomplish, but still, you said yes, just because the person would be sad and would not like you? or Have you withheld or changed decisions because your decisions would make someone unhappy and may hate you? If you have done any of this you are a people pleaser and you are killing yourself and your career. You are selfish to earn short-term likability over long-term ( mental )health and success.