Maybe change isn't possible...

I've always been a believer that change was possible, that no matter how old you are you could change your habits, ways, etc.  Now, I'm starting to doubt that.  Not only have I found it very difficult if not impossible to change my spending ways, my often times laziness but it seems the ex is also someone who will never change.  He has a drinking problem, and anger management issues, and just bascially lately has gone ape shit crazy.  Today was another one of those days where I would have sworn he was drunk but he was acting more insane than drunk.  He caused a huge scene with my second oldest, I had to call the cops and he just was so ridiculous.  He's gone now, and won't be back tonight, but just having to go through this again makes me realize maybe change is impossible.