If normal antibiotic not working, quickly go back clinic or hospital tell them what antibiotic u took and not working.

His symptoms were constantly have to cough, even at night sleep time also can hear him cough, skins getting darker as months pass by, and also just feel weak in general. Initially he went to Sun*** Hospital by himself and checked with a doctor, then my father complained to me that the doctor did not diagnose him with TB but with something else, for that I don't really know the details la but in the end visit another doctor. Have to stay in the hospital to draw out the "water" in the lungs, discharged out of hospital after a week, then have to come back again do the same thing because "water" still gets into one of his lungs. Bought the medicines, got like a lot of medicines for him to take lol

He usually comes back home late, sleeps in separate room. Even if he arrived home early e.g. 8.30pm-9pm, he would sit outside home and smoke while reading online novel until 11pm then only go to bed. He got curi-curi smoke even though doctor told him stop smoking  most likely because of nicotine withdrawal. Doctor did mentioned to take the medicines, but to cure the symptom really have to depend on luck since his health is also weak, taking medicines just only prolong his health for few months but won't cure the TB. Doctor recommended to take surgery but problem is his weak health, the success rate is super low about 5%. In the end succumbed to TB one day at night, he didn't respond at his own bed at home.

So far my symptoms are getting better compared to last week, just the throat feels little itchy now. I had to get cough syrups instead of Strepsils because Strepsils always don't work. As for chest pain, not really chest pain but the area below the left side of my lung, happens only sometimes after eating when sitting down. Breathing okay so far. Last 2 weeks ago when I woke up then can feel the throat pain and itchy.

How long your father was coughing before he passed away.

can't recall... about 1~2 years I think? But even before finding out he got TB, he did cough in random frequency

After finding out he has TB, the frequency of coughing keeps increasing

Already told him to stop smoking since I was a kid but didn't listen. However I did saw a few nicotine patch boxes while growing up, I gonna assume he failed to quit smoking. Well, sometimes can't convince a long term smoker I guess.

What did he do in that 1-2 years? Continue working or resting at home? He still has the energy to walk around in that 1-2 years?