Natural english

One day he had a breakthrough. He decided to alter his life. 
First, he wanted to take all responsibility for his problems.  
He stopped blaming others. He stopped turn to justify.
Did he have a great change? 
Yes, he had a breakthrough. 
 
 
Did he commit to modify his life?  
Yes, he decided to change his life.  
Did he crave to take all responsibility? 
Yes, he wanted to take all responsibility. 
Did he stop blaming others? 
 
 
Yes, he stopped blaming others.   
Did he quit giving justifications?   
Yes, he stopped giving justifications.