Gaslighting, the act of manipulating someone by psychological means into doubting their own sanity, was named after a play and subsequent movie where a husband convinces his wife she is going mad by gradually dimming the lights, whilst telling her it is only her who thinks the lights are flickering.
Of course, eventually I would succeed, and far from the life downgrade I feared, the opposite happened. My success wasn't a fluke, it didn't happen overnight, it wasn't a result of willpower nor did I live in a hut in the woods for two years. In fact, there were three deliberate stages to it and I've shared them below.
While a war has been declared on sugar, no such pressure is being put on alcohol. The voices in favour of minimum pricing, which has been rejected by the UK government, largely belong to health groups, the equivalent of the friend who doesn't drink - you respect their views and they are probably right, but you're having too much fun drinking to listen.