Answer:
It belongs to you but you donβt use it. It does not belong to other people but they use it. What is it?
What is always on its way but never arrives?
The eight of us go forth not back to protect our king from a foe's attack. What are we?
You'll have to consult an optometrist if you want to improve this.
I start in little but I end in full, you'll find me in half and complete.
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.