@Isaac your experience resonates a lot with mine - in my early 20's I had no idea what to do with myself. It's actually pretty daunting to be told we're supposed to know exactly what we're gonna do for the rest of our lives when we're barely out of high school, a place where we still had to get permission to go to the bathroom.
Most of us I think do find it difficult to figure out a pathway through life - the ones who jump straight into a career and can buy a house by the time they're 30 actually seem like outliers in my experience.
It's good you've been able to recognise that you're using alcohol to cope. It can be really tricky to navigate - have you got much in terms of some mental health support? Turning Point are a great resource for support - you can buzz them on 1800 250 015. Or you can also buzz the SANE support line on 1800 187 263 (Mon-Fri, 10am-8pm) if you wanna chat to someone about mental health stuff.
I hope you find what you're looking for here on the forums 💜