Respuesta :

When talking negative about ones self could lead to the loss of self esteem. 

Self esteem is the pride/confidence in one's self. 
Low self-esteem.

Example:
  
I know I look terrible today

she completely disregarded me today, I am certain she despises me

why are they treating me like that, possibly they loath my organization

the way I carried on today made me appear to be so doltish

why is it that I couldn't do that, I am a looser

I am nothing compared with those individuals

am late, am certain my manager is going to yell at me.

I'm a disgrace to my parents.

And so on....
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This thoughts above, arent good enough to help the mind.