Welcome, I am in the UK and happy you have found us!
I understand about the increasing tolerance when you drink and you wonder how much your going to end up drinking in the end.
My life is better without booze. I have over 390 days now. Bit AA and lots of time here.
I agree with you about keeping busy.
I drank in the evenings (or the minute the clock hit 6pm!) and I needed to keep busy. I did exercise, projects round the house. Some nights I even went for a long drive with music to clear my head.
I wish I had known what I know when I was younger.
It would have saved a lot of heartache and anxiety in my 30"s.
Don't let booze make you miss out on life.
It is not worth it.
Get together some sober time and I am sure you will see your life start to turn around, like I have.
I know you can do this and I really wish you the best.