3 Reasons Why Being Too Nice Doesn't Work

You overextend yourself
When you say yes when you mean no because you want a person to like you, you’re probably not taking your own needs into consideration. Your knee-jerk reaction may be to help but if you have 3 things on your plate that must get done and you take on another, how are you going to fulfill your priorities? Running on "empty," doesn’t help anyone.  You are likely to feel irritable and others will sense your “true colors” as well.  

You are not authentic
If you stuff down your real feelings, they may come out sideways and ultimately, you may say some things you'll regret. It's better to be truthful and risk alienating the person upfront.  You may be pleasantly surprised when they respect you for it.  They may not agree with you, but it creates a space for an honest exchange.

When they see behind your mask
When you're really angry and you say everything's okay, very few people will buy that. You may be smiling but you’re giving off another vibe. The only person you are fooling is YOU. You are not avoiding an argument by being agreeable, you are actually fueling it because people can’t trust a phony.