People start being unhappy when they feel like their life hasn't turned out the way they wanted it to be. In most cases, if not all, they can't name something specific; it's because most of them actually gave up on their dreams.
But the fact is, nothing is unreachable, only if you don't believe in it, and only if you don't put some effort in it. Now everybody can dream of being rich, or having the love of their life, but what is it you really desire for yourself? Most things we take as "our dream" are nothing more than the results of what you're trying to accomplish.
I actually stopped thinking about what others think about what I can or can't. I quite literally stopped listening to people who say I can't become a world-famous writer. Never give up on your dreams. You might not reach your final goal, but as long as you're working towards it, you have something to look forward to. Thing is, nothing will be as we want it to be, but at least the thought of getting towards this dream is actually satisfying enough.
If you can satisfy yourself, only then can you satisfy others. The rest will come, if you not only believe in it, but also in yourself. I'm a 24 year old virgin, soon to be 25, and I don't expect to get a girlfriend before my 30th, but even if it never really happens, I still have my dreams.
And I also truly believe that for everyone, there is someone. It's not something you can explain, but it's just so. Sure that other person will never be like you imagine that one to be. I don't expect to actually find a girl with long dark hair, blue eyes, glasses, aspirations of becoming an artist and still be a virgin by the time I meet her, or a very hot and equally intelligent redhead,
or Mila Kunis,
but that's life.
And it doesn't really only stay with love, it extends to the rest of your life. You can spend your entire life chasing that dream, if you don't live your life in-between chasing that dream, what use was it to chase it anyway? Some people don't give up on their dream because they don't think they can't reach it, they do it because they know that wasn't exactly what they were looking for at all, they actually found a new purpose in life.
A Dutch song once sarcastically said: "Life is what happens to you while you make other plans
". I think it's true, but without surprise, what's life worth? Without the sad part, what good are the happy parts? Without strife, what is love
Also, I really should be going to bed. I'm not thinking straight anymore and actually forgot most of what I was writing.