I think I know how you feel.
Esentially you've stated that you feel your past is a waste, and you want a good future. You DO want to care for your son, but at that same time that leaves you a lot ot be desired in the career field.
You're also worried because you haven't developed any skills yet and you hate who you are.
Well it definately is a unique situation, especiallly because of that element that you said you were shy. Introverts tend to have the hardest time taking action because they feel they have to do what others tell them to make them happy.
Sounds like this makes you very unhappy in terms of where your life is going, with no direction or sense of it. And because your parents have choosen a path for you.. yet you have ambitions.
In a way, the fact that you are depressed IS a good thing. Some people don't have aspirations and live day by day not yearning for more. You have some part of you that is calling wanting more.
Maybe that is part of your destiny right there. Maybe the fact that you feel this is someone, or something telling you that you are destined for something more. Maybe I this sounds crazy...
But if you feel that you SHOULD have a destiny then you do.
What it is, well that might be hard for you to decide.
What to you consitutes as destiny? Maybe a good cause? or good Career?
What do you think it is?