Hi Jbr,
Thank you for sharing your story.it must be very difficult for you to have discovered your mum’s alcoholism so recently. I can totally understand your frustration that the affect that it has had on you and your sisters has been ignored.
You may like to contact The Icarus Trust. We are a charity that supports family and friends of those with addictive behaviours because we know how hard it is to deal with. If you contact us, one of our trained experienced volunteers would be able to speak with you and , perhaps help you to start to make sense of how you are feeling.
You can contact us on help@icarustrust.org or visit the website http://www.icarustrust.org
All the very best.