Many people are staying long time at jobs that doesn't challenge them intellectually and even worse isn't giving them any happiness.
There is no doubt that if they had the money in the bank they needed, they might have left their job. But is it worth waiting until the conditions are perfect before you quit a job that isn't providing any happiness?
My personal philosophy is that when you start to look at your watch at a job, and once you are waiting for Friday to come just to get out of the work, then it is time to quit. Nobody wants to reach the point where they simply can't stand it anymore.
Once you for a longer period have thought that your current job isn't something for you, then it is a good idea to give yourself a two month period where you in your free time don't go back on the couch, to the café or anything else but instead spend your time thinking about which job could provide you happiness in your every day life.
There are so many jobs out there and therefore there is a perfect job for more or less everyone. In other words fight to make the day interesting not only at home but also at work.
In my opinion the key is to find a job where you can use your professional skills but also some of the skills you earned from your interests and hobbies.
While all mentioned so far mainly is hypothetical I would like to bring a small example of how I see that it is possible to turn your everyday life from sad to pleasure when you dare to change things.
I have a friend that was working as an accountant and simply hated his job, every day at work for him was a struggle to keep up the mood. Out of the sudden within a few weeks, he switched job and started working as a chef, which surprised many of his friends including myself. How could he leave the job at the office and go to work as a chef? Nothing wrong with being a chef, but the two industries are simply so different.
What he did was that he simply asked himself what he would like to do every day, and then he went for it. He have being working there for three years now and still enjoys it as much as in the first two weeks.
What he did is not a miracle or anything, he just did what he thought could make him happy, and he dared to say stop when he felt things were going wrong. He quit the job he disliked a became happy, it sounds so simply but only a few dares.
Of course there are some that takes a chance and lose, there is no doubt that chasing the dream can go wrong temporarily, but what is sure is that working all your life at a job that doesn't make you happy is a huge failure that isn't worth living.
Therefore my opinion is that people always should chase their dream job, and never let go of such ambitions.