This is kind of a hunk of generic advice, and also coming from an uninformed place (I had the best two parents in the world, but endured many other tough experiences..)
All I can truly say about this, at least a part of the whole thing, is that (around) thirty-five or forty years ago your parents were both small clueless children. People aren't perfect, usually by choice or weak will, but sometimes because of honest medical issues that may never come to light. Lastly, life is ever-changing and ever-evolving, also (usually) pretty long, and no single sample of your to-date experience should be used as a "norm" to judge the rest of your life by..
Obviously the parents don't always "shape the children", nor are you doomed to be the apple that fell from that tree. Basically, judging what you wrote, for you to end up like your parents you'd either have to suffer some brain damage, or just totally give up on yourself.
Wisdom isn't gained by shuttling to work every day and learning how to work a checkbook. Wisdom basically only comes from the prusuit and the respect of wisdom, and unless you craft a lesson from every scar and live by it then every victory is useless. Honesty and kindness are also kind of handy.
Then again, in the interest of a harsh truth versus a sweetened lie, everything you have, everything you know, everything could flash-fire into an inferno at a moments notice and prove to you that the "bottom" part of hitting rock bottom isn't exactly real, and there will always be a distance to freefall into an even inkier darkness, and the bottom, I suppose, will eventually reveal itself to be cold death
And that is a less generic bit of advice, and will generally ring true throughout the rest of yours, and everyone's, life (thanks to death, generally..).
In a much less fatal and pessimistic way, we'll just say "Enjoy the little things." from Zombieland and call it golden
Don't guess the "little things" will involve Twinkies much longer, and that gives Zombieland a zest of Nostradomaliciousness..
Also don't let me derail this lighthearted language-learning/teaching discussion occuring currently
I can understand the 2 minutes of conversation a day statement (except that I usually seek silence by choice :| )