Hi Sian and welcome back!
I see a lot of motivation in your message and that and determination is a good way to start!
What has helped me loads here was making a plan and being here as much as I could.
I will tag in some treads that are usefull to read:2 years sober and what helped me to get there: and this one What's YOUR plan? Read them and use the info to fill your own toolbox and make your own sober plan! If I can, so can you 
If you want more information about in particular binge drinking you can use the magnifying glass above to find all the interesting treads about them.
See you around! 