If you believe only yourself, then that's understandable.

If you believe only yourself (your intelligence and hardwork), then:
1.缺乏同情弱者: they are either not hardworking or not intelligent;
2.爱炫耀: why not, you work hard and work smart to make it;
3. 缺乏真正信仰: if you believe yourself, you don't have to believe other God.

缺乏独立人格: that's not true.