Welcome Orkney.
I think if you browse back through the newcomer forum or wait to see those that'll be coming in you'll notice a lot of similarities in everyone's stories.
I can definitely relate to a lot of yours, the amount being drunk, the problems with boredom/isolation, taking counseling as my first step... other details differ but so it usually goes.
It's quite alright to be unsure where to start. I think that's generally true, but I think having something to work toward, keep a commitment to is the best. Sounds like you're doing that. Coming here can be a great thing too. It helped me a lot having sort of the 24 hour support.
"One day at a time" is not such a cliche. Another way to say it is, especially in the beginning, "just work with what's in front of you." You don't need a lifetime plan or a perfect understanding of how/why/in what way you've got a drinking problem. Just learning to get by the difficult moments eventually builds up.
Take care and glad you're here.
