Q: I don't have personal hotspot in my iPhone 4s settings and i beleive it's supported by my Internet provider how can I fix that ?

Do your carrier support that? You need to talk to your cellular provider.

Have you subscribed to a tethering plan from your cellular provider?

Not necessarily. But you will have to subscribe to a tethering plan, or at least confirm with your cellular provider that it is available. What is your cellular provider? country?

Yes, some countries in the middle east do not have FaceTime. It's banned in those countries.

There doesn't seem to be a cellular provider in Lebanon that supports the iPhone. That would certainly create the lack of a HotSpot option.