Welcome Dunc88
I can relate to everything you say, never got into coke myself just drink.
I started reading on here just after my 30th. One of those mornings at work when I thought the world was going to end after a three day binge.
It took me nearly 5 years to sign up and start posting. In that time everything just got worse and has continued to do so.
I missed the “drunken fun” so decided to go out after 5 months sober last year. Regretted that.
Just over three weeks sober now, I wish I had been more committed at 30. Do it now it will be the best decision you ever make. You have got 6 years on me, think what you could achieve with your life.