Trade will be a particular source of difficulty. The last IMF report on the country prior to the collapse of the government counted imports at about $7 billion annually, a huge fraction of Afghanistan’s $19 billion GDP. Imports exceeded exports by about a factor of five. While that high level of imports was sustainable under the unusual circumstances of the U.S. presence, it won’t be sustainable going forward.
So on top of its other problems, Afghanistan will need to balance its trade deficit, a deeply painful process that will, one way or another, reduce the number of imports available to Afghan civilians. Given that its currency reserves have been frozen to prevent the Taliban from accessing them, it will need to balance its trade deficit quickly, without any adjustment period.