I used to be a smoker and one thing that helped was that there was a lot of information about what health improvements happened to the body after quitting.
I could not for the life of me find a simple infographic for quitting alcohol. I’ve tried to assemble some basics here but it really seems difficult to get information. Many sources push dry January, but very few talk about quitting altogether, despite alcohol being classed as a known carcinogen. I myself am writing to my local government rep regarding this lack of health information and to again, ask to ban alcohol advertising. I would recommend everyone do the same. Anyway, I’m not a doctor, I found these times on the internet, might not apply to everyone, if there’s something else that should be in here please post below 
3 days - Alcohol is out of your system
2 weeks - Alcohol induced brain shrinkage starts to reverse
2 weeks - Blood pressure starts to lower
3 weeks - Bones start to repair (will continue for over 5 years)
3 weeks - Your skin starts to look better
4 weeks - Liver function starts to improve
4 weeks - Heart health begins to improve
3 months - Sexual functions start to improve
1 year - Majority of brain recovery has occured (will continue for 5-7 years after abstinence)
Ongoing - Way too much to write, but there are so many benefits it is crazy!