I'd say you're entitled to live how you want provided it's not detrimental to you or society. For example, if you're finding happiness in the bottom of a wine bottle 24/7 (or other such vices) you might want to rethink things. (IMG:
style_emoticons/default/blush2.gif) But if you want to be successful in your chosen career, have a family, travel the world, or just sit at home with your pets and watch the world go by, I personally don't see a problem in that.
My life, right now, is more or less how I wanted it to be when I was a kid. I wasn't counting on the autoimmune crap throwing a wrench into the works but since that's genetic it couldn't be avoided. My life's not *perfect,* there are still things I need and want to make it complete, but for now it's OK. But then again if things were perfect and I had done everything that I'm supposed to do in this world I'd be dead, so...but I'm working on the things that I feel would make my life better.
That having been said: the completely trouble-free and bad day free life is a myth. You'll only find that on the other side of the grave and maybe not even there--it depends on what your Self wants to do. How you deal with the inevitable snarls is the ultimate judge of character. The general idea is to set goals and achieve them. Just bear in mind how you get there may or may not be quite what you had in mind.
The main problem is that most people don't know what they want, and by the time they do, their lives are set and it's usually too late to make any kind of serious change. Or, they're too afraid to go after what they really want and settle into quiet lives of mediocrity. Both groups usually wind up hating and fearing those who do follow their dreams, whatever they are, and then their pettiness causes a lot of grief to themselves and everyone around them. So you'll want to be aware of this as well.
Just set your goals and chug away. Good luck...