Been asked that by a friend,
Seems quite challenging to me,
Still thinking of ways to go about it.

Maybe weakening cigarette related indicators in the elected chart (Mars, Mercury, 3d house - habits/routine) and strengthen health indicators in the same chart.

What do you think?

I list my own criteria in descending order of their importance, below.

It must be waning Moon. I was taught it was great for ending something including addiction. Every time I cut off something when it was full moon or waxing moon, it ended up very rocky with lots of back and forth, and sometimes in regrets. But when I did so in a waning moon, the cut was squeaky clean, and everything was civil, under control, and turned out for the better.

These are also crucial: avoid fixed angles no matter what. Place the benefits at an angle if at all possible. I would also want a strong Moon applying to dignified benefics.

The below are optional in my opinion:

I would pick cardinal angles if possible.

Preferably, and as you said, Mars (fire, smoke) in weak houses. And Saturn (hindrances, old habits hard to shake), too. Better be separating from the Moon and the ascendant lord, or at least have nothing to do with them.

I would want the ascendant lord to have a favourable aspect to the Sun (health, clarity). And of course, the 6th house should not be afflicted. But I think it's less important than the ascendant itself and its lord.

Karan Manchanda
https://astrotalk.com/astrology-blog/wh ... astrology/

"In Astrology, the Moon which controls one’s emotions and habits is the biggest reason which makes one addicted. Today let’s take an oath to control it, as it is for you who are reading here or for someone who is a dear one for you.
We need to watch the placement of the Moon and the best time when the Moon becomes weak is the time of “Waning Moon???. Now if we know the placement of Saturn and the time Saturn makes an angle in one horoscope via “degree transit??? this best time to quit smoking.
If you need to control or quit smoking you need to find the placement of Saturn Transit with Waning Moon as Saturn is a planet which is known for Judgment and the Moon's power is diminished when it coexists with Saturn. Saturn acts as a teacher which can give all guidance to one's life."
Best also when Saturn is D not R because you may have to try again.

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In the Almanac, they provide these dates below
https://www.almanac.com/bestday/quit-smoking
June 11, 15
July 8, 13
Aug 4

In all dates given above the Moon is waning and last over Saturn and applying to Jupiter by conjunction except for July 13th where the Moon is square Saturn R. Not sure why they pick up this one. But also make sure the Moon is past the conjunction to Neptune.

Great tips AmeliaS!

Ouranos
The retrograde bit is also important, good point.

Another one I picked up:
Maybe trying to time the electional chart according to the new moon (new beginning) or maybe during a lunar eclipse in a sign which may symbolize smoking (eclipsing the bad habit).