Hey,
I have not completely given up alcohol, just severely cut down since January.
For the past 4 years I had been drinking at least a bottle and a half of wine per night. This then began to creep up to two bottles of wine and then a few vodka. I was riddled with constant anxiety, my family relationships and friendship were breaking down and I was missing college constantly (was somehow keeping up and passing the assessments but god knows how as I was hardly ever there).
Eventually I had to make a decision. I literally had an 'aha' moment where I seen my life ahead, I had two paths in front of me and only one to choose. If I didn't choose to get better then I think something very bad would have ended up happening.
So I decided to cut down, so far I have managed 20 alcohol free days in january, 21 alcohol free days in February and so far 12 alcohol free days in March and I am aiming to make 28 days in March all together as I have an event on the 31st. So although I've not stopped drinking completely, this is a massive achievement to me and I feel the benefits every single day I choose not to drink.
I never thought I could go a night without alcohol, I used to dread the thought, every morning I would promise not to drink that night yet every night I would drink. I felt completely caught in this cycle that I never thought I could get out of.
I don't really have any advice but just wanted to let you know that seriously, if I can do it, anyone can.
What helped me massively was changing my habits at night time, proper self care, being kind to myself and literally just taking one day at a time. Also having something to look forward to at night other than alcohol, so maybe cooking a nice meal, or looking forward to a tasty dessert or a good film or book. And having a nighttime routine, long hot shower just before bed, flossing and brushing teeth, reading book in bed. Just to help you sleep as sleep can be challenging first little while after stopping.
I would also recommend the book "how to quit the drink easily" by Jason vale.
It is an amazing book that totally transformed the way I viewed alcohol.
Of course there are groups but I can't recommend you on that as I have attended one AA meeting in my life. And of course you could seek help from the doctor if you feel that would help you on your journey.
Good luck 