I can fix this, with the right tools, and time, I can fix anything, including her.
Uh uh. You can't. You cannot "fix" her. You may be able to fix everything at your job, but you cannot fix an alcoholic until they are ready to fix themselves. It's not your job in any case. It's hers. Your job is to take the best care you can of your children and yourself.
Yes, it's obvious you have a lot of anger inside and I hope you get some help for yourself. You cannot control another adult, but you can control yourself and how you react to them.