Was my life supposed to end up this way?

I always wonder if my life was supposed to end up this way.  I used to be happy and not have issues with depression.  Why or What happened?  I mean, I know on the surface what happened, but why didn't I have the tools to handle it?  I really want to instill strength in my kids to be able to handle hard times and disappointment.  They are a part of life and I don't think I was capable of handling them and am learning at 36 how to handle them.  I was just a kid out there in the 70's/80's dangling......  I know it's easy to blame your parents and I don't and all I can do is parent differently.  Everyone does the best with what they have.  I just wonder if God or our higher power has this plan for us when we were born or if the choices we make put us in these predicaments.  I choose #2 because I think I could have made so many better choices, but who knows.  Something to ponder.........