I live in the same country as the OP and I ride a road bike with 35mm tires, 95% of the time in pavement.
Our paved roads are just horrifically bad, absolutely horrendous, I really wish I had bought an MTB instead to be able to clear >2" tires. But you know how poor countries are, adjusting for inflation and local per capita incomes, bikes are a lot less affordable even the dirt cheap department store ones and the used bikes are still expensive around here.
So I'm stuck with my bike. I've managed to solve 50% of the problem by switching to extra-wide, thickly-padded commuter saddle. It looks way out of place on a road bike but it works. But 50% of the problem remains on the front end. Even with 35mm tires and steel fork, is not enough to tone down the bumps on the front end.
I'm literally starting to have headaches getting my head shaken violently by the bumps that I have stopped riding to the mountains for now. I still do 60 to 70 mile weekend rides but in the city doing multiple laps within rich neighborhoods where the roads are nicer. I can still make 5000' elevation gain by simply doing hill repeats on another rich neighborhood.
The main problem in our country is severe corruption in all levels of the government. They deliberately make road building and road repairs as bad as possible so they can make repairs and rebuild again and again so they can embezzle (steal) more money from funds / taxpayer's money.
Cars here will develop rattle and squeaks far too sooner than the exact same car on another country and generally age much faster due to the very poor quality roads.
So my advice to the OP, it's either you get a MTB.........OR.....a carbon roubaix type road/gravel bike although I'm pretty sure the OP won't able to afford a carbon roubaix bike unless he is rich (by our standards in this country).