Taking charge of one's life probably means different things depending on the person, trying to do it. For me though, the true end goal is about two things: Doing God's will and living a satisfying, good life.
Since the first aspect has been addressed a few times in the past posts, I'm going to handle the second aspect today.
When it comes to having a good and satisfying life, the way to go is with making the most of what you have. This can take more than one form.
For instance, it can have to do with the outlook you have on life. Some people have more and some have less. But that doesn't matter. It's what you do with it that counts.
So instead of being jealous of others and what they have/accomplished, I try to focus on what I'm doing. I try to keep track of whether I'm actually get the most of what God has provided for me. The way I see it, there's no use to wanting more when I can't utilize what I have.
If I find that there's something I'm neglecting, I try to use it again. Like skills or talents. Or time with my family.
Life becomes much improved after that. Which makes sense. Because if you're doing and enjoying things you love, there's no reason to feel unhappy, is there?
Do you take stock, every now and then? Feeling discontented? Is there something you can pick up again that will help?