Ill say writing a list of goals
        
                    
             
        
        
        
Get a check up with his doctor!! His doctor can help guide him before he begins doing anything.
        
                    
             
        
        
        
Answer:
It means very determined, like you have a goal, and you are going to complete it. Even if you mess up you keep trying over and over again.
Explanation:
 
        
             
        
        
        
'Carotid artery' is the one you're looking for. Mentioned quite a bit in English literature I might add.