I am not able to download TikTok as it says ( currently it's not available in your country/region) which i am in Kabul/Afghanistan and it's not banned by our Gov. so how it's not available here.
Afghanistan may be subject to USA or UN sanctions affecting apps such as TikTok. It's a highly complex subkect and such documentation as is readily availableon Google is unclear, which is why I say 'may'. However, if it's unavailable to you, I'm afraid there is nothing you can do about it.