Ego and attitude both seems like one , but in actual both are different . It doesn't matter whether you are successful or not . If you keep ego with you then it always take you in negative direction. Ego is nothing more than feeling of superior then other. If i talk about attitude then attitude may be in positive way or in negative way. It depends on you what you choose . Lets take a example - once upon a time a man buy a car and that car goes accidents many times . People says to the owner of car that this car is unlucky for you but onwer says it is lucky for me . This car accidents many times but no one died. Here onwer of car shows positive attitude . Always Keep positive attitude with you , not ego.