Amiable to everybody is difficult

Being amiable to everybody is too difficult to me.
I don’t like to pretend to be a nice women.
But I want to mingle with many people, because I like to talk.
These is mental conflict….

Better......

Being nice to everyone is difficult.  

Being friendly to everyone is difficult for me.  I don't like to pretend to be nice, but I still want to socialize.   I feel the stress.   

Comments.....maybe a version I would use below? Saying mental conflict in your wording, I am assuming you really mean you don't care for fake social situations.   

A native speaker would word this differently.  Personally, I would say: "Being nice can be difficult.   When you're in a crowd and not in the mood, it can be stressful to pretend to be interested, but really not care to be bothered.  Stressful and conflicted are good words to describe how I feel in social situations.   

Amiable to everybody is difficult

Being amiable to everybody is too difficult to for me.
I don’t like to pretend to be a nice women woman.
But I want to mingle with many people, because I like to talk.
These is my mental conflict dilemma….

Amiable to everybody is difficult

Being amiable to everybody is very difficult to me.
I don’t like to pretend to be a nice woman. (You could say a bit more here to explain your statement-such as: I am straight--forward so if I disagree with someone, I am not afraid to speak up)
I want to mingle with many people because I like to talk.

There is a mental conflict between different aspects of my personality and it can be difficult to manage.

Being amiable to everybody is difficult

Being amiable to everybody is too difficult to me.
I don’t like to pretend to be a nice woman.
But I want to mingle with many people, because I like to talk.
This is mental conflict….