You don't need to feel sorry for Pakistan, it will do just fine. It has weathered:
- the WoT & 70,000 lives lost + $200+ Billion in economic damages
- played dangerous double-games against two superpowers right next door
- while simultaneously handling infiltration & sabotage from a plethora of hostile intelligence agencies including but not limited to R&AW, Mossad, Iranian Intelligence, modern inheritors to KGB, US agencies, MI6, KHAD, etc. Attacks have drastically decreased, demonstrating that Pakistan has countered these agencies
- Going toe-2-toe with India despite being a fraction of its size & humiliating it in the most recent encounter. IAF is too afraid to attack, otherwise they would have done it by now
- Western sanctions multiple times, something you have never experienced in your life
Now the US is begging Pakistan to help it leave gracefully. In fact, Donald Trump is ready to meet Imran Khan, who by the way, told Trump to shut the hell up. Can your prime minister do that, lol? Things will get better for Pakistan, no doubt about that. It's just passing through current account & fiscal deficit issues, which the current government is already doing a good job in fixing. US will be forced to allow economic aid to flow to Pakistan again if it wants a stable Afghanistan, post-withdrawal. Furthermore, once US leaves, it's goodnight for R&AW and KHAD and their training camps. In fact, that has already started happening (
https://www.dawn.com/news/1453853). Balochistan will stabilize soon enough, it's already significantly improved.
Your economic growth will be short-lived, insha'Allah. Don't worry. Pakistan went through the same boom-bust cycle years ago. It became one of Asia's fastest growing economies during Musharraf's time. Economic growth is always temporary, it comes and goes. Remember this, however, that the military power and the ability to use it protect independence is what matters. Otherwise, countries like Japan & Germany would be superpowers. They are not, they are just emasculated countries disgracefully begging the US to protect them against threats like North Korea. Pakistan has:
- a strong military, one of the largest and most powerful
- hundreds of nuclear weapons, deliverable through variety of means
- one of the most powerful and renowned intelligence agencies in the world
Bangladesh on the other hand, isn't even comparable. It is just a vassal state for India, with no real foreign policy. Its army, air force, navy aren't even worth mentioning. It can't even stop Myanmar from killing Rohingya brethren (which are really just Bengali's and don't even bother arguing with me, I've had Rohingya tell me this to my face). I'm sure some brothers from Bangladesh will admit this. In fact many of the ones I know already do and quietly cheer Pakistan on, as they know their own government is just a puppet for India and also incredibly anti-Islamic.
Also, Pakistan still has deep intelligence network inside Bangladesh. These networks can be activated whenever some Pakistani general wakes up grumpy in the morning, remember that. You can boast right now about how you came a long way from independence. However, I believe Allah (swt) gave Pakistan nuclear weapons in exchange for losing East Pakistan. I think that is an excellent trade.
At least now, Pakistan is an internationally-recognized nascent power. Iran, despite being much weaker, is a major regional power but that's because they have hegemonic designs for the region. Pakistan right now is the opposite, defensive and relatively peaceful. The whole equation will change once some generals start having grand dreams of being a major power. Once that happens, you will see Pakistan testing ICBM, SLBM, SSBN, everything. You may even see your country split apart...