Egotist

Someone who thinks of his/herself much more highly than anyone else, and one whom usually thinks only for their own sake. Egotists can be manipulative if profits outweigh losses, and are generally non-biased when giving advice and criticism.

They are different from narcissists in the way that they live in reality. Unlike popular belief, because egotists are so in love with themselves, they also criticize themselves much more. Warning: Egotists are fragile creatures, do not try to change their ways, their opinion of humans will drop even further.

Egotist: Hey man, welcome to my party!
Friend: Why do you have so many parties again?
Egotist: Because every time I accomplish something, I feel like having one. :)
Friend: Don't you run out of money?
Egotist: Not really, I made a plan of all the times I can have parties, and their budgets. *shows schedule.
Friend: You are crazy.
Egotist: Shut up and enjoy the party.