Tetrax.
As you are in the UK do you not have a local addictions service you can access? They are all over the UK, each NHS area should have its own addictions service. Some are better than others / offer more support but all will have experience of dealing with someone whose life is controlled by drinking.
https://www.nhs.uk/service-search/Al...ionSearch/1805
Some of the information may be out of date as it is up to each NHS area to provide up to date information and some are a bit slow in doing this but you should be able to find something local from searching by your postcode.