Aim to vs Aim at

Aim to (idiom)

Meaning - Try or intend to do something.

e.g : We aim to please our customers, or She aims to fly to California.

Correct usage: aim to + verb

Aim at (idiom)

Meaning - Direct a missile or criticism at something or someone; to plan, intend or to have as one's purpose

e.g: In his last speech the President took aim at the opposition leader.
He aims at finishing tomorrow.

Correct usage: aim at