The Messenger of Allah, may Allah bless him and grant him peace, was reported to have said:--
''HE IS SUCCESSFUL WHO HAS ACCEPTED ISLAM, WHO HAS BEEN PROVIDED
WITH SUFFICIENT FOR HIS WANTS AND BEEN MADE CONTENTED BY ALLAH WITH
WHAT HE HAS GIVEN HIM''. [ Muslim ]
These days when people say so and so is very successful, what they mean is he is making a lot of money. By this noble Hadith, we understand who qualifies to be called successful. It is not having car x, house in y and a job z but:-- Islam, Needs fulfilled and Possessing a thankful heart. Note this accordingly.