I know what you mean Whitebear. It's getting to the point, where I can't even be bothered to pretend.
Yesterday at work, we had some woman who works in the Fitness Industry come in to run a workshop. She was so passionate about her job and really dynamic. She runs Marathons, does Triathalons, writes articles for the press and is hoping to start working with an international Rugby team as a Fitness consultant. She really irritated me actually.
I've never really been passionate about anything and rarely am I interested in anything, most things and people bore or irritate me. Whilst many people have had some kind of difficulty in their life, they tend to overcome them. I've had my fair share of problems in the past, but at present, I shouldn't feel unhappy or dissatisfied, as my life is pretty good.
I have a loving partner and I only need work partime. I've been reasonably successful in my chosen career paths, I live in a nice house and don't really want for anything, but still spend most of the time feeling totally p issed off. I dislike most people I encounter and I encounter many, as I work in an industry, where I have to interact all the time. I actually hate having to waste my time and effort on these people.
Even my friends, I can take them in very small doses, as they irritate me, harping on about their crap relationships, constantly bleating on about themselves and never really asking or caring how I am.
Anyway, now I've ranted and raved. Perhaps you feel unhappy because you can see things and people for what they really are, mostly selfish, uncaring and self centred. Or perhaps you are just a naturally very sensitive person, so take things to heart more deeply than others might.
I'm not sure how you can handle this, except trying not to surround yourself with people who will let you down. Perhaps you could benefit from counselling, which could help to release any pent