less alc (I know, it's tough)
Actually, that's not though for me at all. I never really understood what people like so much about alcohol or getting drunk. The two most socially accepted drugs (alcohol and nicotine) are in fact the two worst drugs based on the drug experience and health effects. There are drugs out there which have a much better drug experience imo without so many negative health effects
Body and brain only need some weeks to establish a new routine...
Definitely, habit building is quite powerful. I think 6 weeks is a good estimate when habits become automatic. You can feel the resistence of not continuing the habit then. I felt that when I used to do more sports. You start to feel really bad when not being able to workout for whatever reason. You want to workout!