no wories, dave...you're at the beginning of your quest...this book is as likely just a start of a longer, better journey... a first step to better things...not the only step
the best journeys are ones that are savored for all thier confluences: this is but a moment to learn from...and move on...forward
As well as using this self help book, it still might be a good idea to try to talk to a counsellor or other professional - there are help lines you can call. You have some major family issues I think that a self help book is not going to resolve, sweetie. I do applaud your efforts to try to deal with this on your own, but I think that some human contact might be wise. Something is really making you angry, and I'm getting a little concerned. I say this with love.