"but I cannot get my head around never drinking again."
So don't try. Think of an ambition that you had when you were, say, 15 that never came true. Could you, at the age of 15, have "got your head round" it never happening? Yet here you are, x years on and, though the thought may make you a little bit sad for what might have been, in general you've got by just fine so far. Why should this be any different? You are not OBLIGED to mentally make your peace, right this instant, with never drinking again.
So don't.
Social drinking - as far as possible, I avoided drinking situations until I felt a bit stronger. However, my friends divided into two uneven-sized groups. The big group, I suddenly realised, had really not liked being with me when I drank and tolerated the drinking because they liked me. They were positively glad that I had stopped, especially as I put no pressure on them to join me in not drinking - my not drinking is about me, not anyone else. Most new friends I met, including my current partner, were also like this. She drinks, I don't, no problem.
The smaller group were either purely drinking buddies or real friends that I had been drawn to because, shall we say, we had a lot in common. The drinking buddies I never saw again, because they were in ther pub and I wasn't (believe me, whatever your views on "wet" places, those particular pubs are not where you go to socialise). The real friends were hardest of all - I tried to stay in touch but, like the old me, they wanted every meeting to revolve around eight pints or a litre of wine each. Have you ever tried drinking eight pints of orange and soda in one sitting? For those few. the invitation is still open - let's meet up, but in a cafe; or go to the pictures; or x, y or z.
They neevr take me up on it but I remain hopeful ...