Pakistan being a new state, its politicians and institutions made mistakes, sometimes repeatedly, but continued learning while safeguarding its very existence in the wake of a determined enemy (i.e. Hindutva India) and global challenges (Soviet and then Nato occupation of Afghanistan).
With the grace of Allah Almighty, Pak has been getting stronger over time. Its not a mean feat to have nukes, missiles, fighter jets, tanks, etc. being produced in Pakistan, defeating and humiliating an enemy seven times bigger in just a matter of few hours.
You keep crying but there are numerous aspects of success for Pakistan. Let's be humble and thankful to Allah Almighty for His great mercy on this country.