Talk to Pulmonologist / Lung on Blood In Cough

when I cought there are blood clots in my mucus, it happened before in 2016 also, I want to know what is it? is it bronchitis, COPD or is it normal, recently I have been in a lot of stress could that be the reason, I am a smoker, have been smoking since 2011. please professionals give me your advice, also prescribe me some powerful medicines, I can't quit smoking , have tried a lot but failed and smoked more than before when I tried quiting. prescribe me some remedy medicines for smoking also so it can clean anything that is related to smoking. thanks