A Rant-Is it ever enough?

One of the things I think most of us suffer from..is not being content. There are so many things we are taught which lead to this. I consider myself a driven person.....I have goals..things I want to achieve...places in life I would like to go (and no, not PHYSICALLY)......and we call this DRIVE. Well one of the things that seems to be hard for me to master right now is the compromise between being satisfied where I am, and with what I have...and my DRIVE. I don't want to be complacent....I always want to be....searching for more...experiencing more.....adding more....productivity to my life...and yes, maybe I can get out of this selfish space I exist in, and actually add something to this earth as well......but at the same time, when is enough enough? I have started to look at various areas of my life....and I see that part of the emotions I call misery..(yes, part of what I call jealousy in my previous post)..all stem from the inability to just be happy with what you have. And I think what it actually means is this:
You don't have to be complacent..be happy with what you have and strive for more. If it happens, that's great, and if it doesn't either tray again and again or set new goals in another area. But either way, be happy with who you are and what you have.
Why does that seem to be so hard? How can someone have the gifts that life has given to me, and still be unsatisfied? Still want MORE.
In a lecture I attended once, the woman said "Everyone hears that saying 'money won't make you happy'...and they all say, 'well, give me some money and let me see for myself' "
I agree with her one hundred percent. (And yet again, I repeat, I don't even HAVE any money right now LOL :). It is soooo interesting. I was thinking while I was driving home last night..it was such a great luxury when I thought that having things I didn't have would make me happy. What is left? To be content. Enjoy the people who are in my life right now. Enjoy the things I have right now. Stive for more, but enjoy the present.
I had the nerve to be depressed in the beginning of this week, and while I was talking to one of my good friends about it.....I started recapping some of my stories and realized..have I lost my natural born mind? Have I truly lost it?
Anyway...I wanted to rant for now......that's all :)