Sadly, you are right.
One major advantage Pakistan has is that it is relatively a narrow country where the vast majority of the population lives along the Indus River and its tributaries, so water management becomes a bit easier with dams, barrages, canals, lakes, and even wells. I saw a video that Pakistan gets twice the amount of water from rainfall every year which the two large dams of Pakistan can hold (Tarbela and Mangla dams) and that water is nature's bounty on Pakistan if properly harvested.
PS. Thank you Ayub Khan for the IWT, for Mangla and Tarbela Dams, and for the 10,000 miles of canal system, for the barrages... People here just don't know what he did but that's for another topic.