Sometimes you don't know what you want to be.

I have wanted to be...

An illustrator: a comics artist, a cartoonist, an animator or a painter.

A writer: a screenplay writer, novel author, self-help book author, a reference book author, a poet or a satirist.

A composer: a songwriter or a musical arranger.

A programmer: a web developer, a Java expert, C++ master, VB pro, or a MySQL-proficient person; A game developer, esp. 3D ones!

A techy person: an all-knowing machine about gadgets and the latest tech news and trends.

A photographer.

A musician: a piano player, a guitarist, a base guitarist, a drummer or a violinist.

A philanthropist.

A recording artist.

An astronaut (as a kid).

And these are all, so much as I can recall at this moment. I know many more others will recur in my head afterwards.

And I still want to be any or all of the above.

EDIT:
I knew it! After less than a minute, I remembered I also want to be a pro swimmer! Or diver!