Or

I will never amount to anything.

I will have no role, 

no impact on this world.

Am I significant?

The world would go on without me.

I will pass from this place

and nothing will be changed.

I have no purpose.

I am just one in seven billion.

or

I will amount to something.

I will have a role,

an impact on this world.

I am significant.

The world would go on without me.

I will go from this place

and something will be changed.

I have a purpose.

I am the only me.