It's all will power unfortunately, but stuff that I found helped:
- Buy nice drinks, don't just switch to Vimto and coke, treat yourself to some nice non alcoholic drinks like Fever Tree do some great tonic mixers, not cheap but feels more like you're having an adult drink than a squash.
- Non alcoholic beers are good if you are used to sitting there having can after can in the evening, if you are more spirits wine you can't really replace these but drinking something keeps your mouth and hands busy
- Find something to do with your hands when you usually drink, ie if it's after work in the evenings then do a jigsaw or build a model aircraft, or paint toy soldiers, build some lego. it keeps your brain concentrated on something and your hands too full to hold a glass/can.
- Exercise, although this is hard because you probably feel horrendous all the time now and going for a jog will make you nauseous. After any withdrawal symptoms have calmed down try doing 30 mins walking a day and then see if you can progress to just some press ups/sit ups or maybe a 15 minute job, one step at a time. That will make you feel massively better.
- Stop watching the news or reading it online. Everything is terrible and it's easy to go into a doom spiral. You don't need to know about 3 billion bad things happening each day, there is nothing you can do about them, and it won't improve your mood.
Hope this helps and maybe works for you too. Inbox always open if you want to talk.