Why does willy think that he is a good salesman?

Willy Loman in "Death of a Salesman" believes he is a good salesman because he Excels in making personal connections with his clients and has a strong work ethic. He also values the idea of being well-liked and charismatic, which he believes are important qualities for a successful salesman. Additionally, Willy's beliefs are influenced by the culture of the time that equates material success with personal worth.