Iffy

 If you think you’re all that; then you’re probably not
If you say you have it all; it’s nothing that you’ve got

If you think you’re special; it will just refer to needs
If you say you never lie; that line itself misleads

If you think you’re better; chances are you’re worse
If you say that you’re blessing: it’s more likely you’re a curse

If you think you’re clever; then you’re probably a fool
If you say you’re the coolest; you’ll surely be un-cool

If you think you’re beautiful: grotesque you’ll be inside
If you say you’re all up front; you’ll have lots there to hide

If you think you’re wonderful; it’s just you wonder all the time
If you say you’re at the top; there’s so much more to climb

If you think yourself despised; then you’re easy to dislike
If you say I love you, it’s clear that you’ve been psyched

Keep your ego well in check, don’t rely on luck
You won’t be such an asshole; and I might then give a fuck