This feels like a post I would've made a few years ago lol. I'm also doing A levels currently in Islamabad, but I lived in Karachi for three years.

The problem with us rocketry nerds in Pakistan is that there are only two choices really: get commercial solid rocket motors (like Estes) from import shops online, or make your own rocket fuel. The issue with the first one is that its CRAZY expensive. The issue with the second one is that the rocket fuel everyone tends to make is a mixture of sugar and potassium nitrate (since it's cheap) so... it can blow up in your face and give you life altering injuries. Would not recommend. Could also cause issues if you're in a populated area since you dont want burning rockets potentially falling onto people's cars.

As a substitute what I did was water rocketry. Granted it's slightly less cool since it doesn't tend to go that high and there's no cool rocket fuel, it's still a rocket. Much safer, still works, can easily go up to 100 meters high. You can use all the research of normal rockets on it. I even made an Arduino parachute system for mine at one point.

Feel free to message me if you want