Itll sound dumb but just smoke less, taper down to 2-3 a day. Even when a heavy nic user I could technically go a day or two before I really felt bad. Its good to 'fast' from nicotine, mind over matter kind of thing.
I quit cold turkey recently using bromantane, it raises endogenous dopamine production.
Heres another nootropic that you could try pairing with bromantane to get the effect.
everychem.com
Morning sunlight is free dopamine.
Swedish snus is a much healthier nic source vs smoking.
Nebulized glutathione if you want to clean your lungs out.
Sleep on your side so your lungs drain at night.
Your lungs will naturally fix themselves after you stop smoking, but its just hard on the whole body, its pretty evident in skin health.