Hey BT, I'm sorry for how you're feeling at the moment, but to be honest, how you're feeling about your mum now - angry, wanting answers - is progress. Of course you want to know, you have every right! And you have every right to feel very very angry about this. This doesn't detract at all from the good parts/feelings of your relationship now.
Your posts resonated with me a lot, for different reasons. Here are just a few:
I had a lot of anger towards my mum. My parents divorced when I was 10 and I went to live with my dad. I did see my mum, but I was still angry with her for not wanting me and my sister to live with her.
When I was 17 I tried to commit suicide (you're right, over dosing is not as easy as one would think!). I'm 40 now. I wish the world was as concious about mental health then as it is now, it would have saved me many years of suffering. I currently take a low dose of ADs as well as doing other things to help my state of mind. Although I still struggle at times, I kind of know what to do about it now, I've learnt to ignore the thoughts that make me feel worse. Most of the time, I am really happy and live life to the full. If I had a time machine, I would go back in time, give my 17 year old self a big hug (freaky!), and I would reassure myself that life will get better, and not to end my life - that would be the wrong choice to make.
I have an 8 year old ds. I sometimes worry for his future, I worry that I might have passed on the 'depression gene'. He is very sensitive, quite a deep and spiritual thinker. But he is what he is, and I wouldn't have him any other way. Just like I came to accept one day that my being prone to depression is a part of me, and not to just see it as completely negative.
Another reason I got into reading your posts, was because there is something special about you - and I mean this, I'm certainly not just trying to flatter you to cheer you up! Others here have expressed it in different ways. You do have a gift for writing, but you also have a uniqueness, a depth, a beauty that is hard to put into words.
I used to be a self-loather. Don't take this the wrong way, but there is something quite self indulgent in self-loathing. Loving yourself, is harder, but the rewards are great. When you love yourself, you have more love for other people, so it's a much less selfish act. I know I sound like a right old hairy hippy now but it's true!
I'll stop for now but want you to know I'm thinking about you, and I do know how you feel. Not exactly, because we're all different, but I know how if feels to be in the depths of despair. It's horrible. Really horrible. Like a living nightmare. I wouldn't wish it on my worse enemy. It pains me to think of someone like you going through this.