My very basic notion of a "job" is based on the premise that you provide some value and you get paid for it. So not everything we do can be a job. Even if you love a video game and are good at it, it doesn't warrant a job for you. Someone else has to see value in what you do highly enough to pay for it.
To be valuable, your skills for a particular subject matter. Good skills to get the job done well are important.
Yet we do not always live only for doing what is necessary. We tend to do what we love to do, and tend to run from doing what we do not love to do. We better take it into account.
So here is my very basic notion for choosing a job. It is a quadrant system and is summarized in this table.
(I) Do you love what you do? and
(II) Are you good at what you do? (in other words, can you provide value with your skills?)
If your job is in quadrant 1, you are good. Keep up the good work.
If what you do is in quadrant 2, you keep it as your hobby, or work to gain skills. Students and interns may belong here.
Jobs in quadrant 3 may not be perfect for you, but you are still getting paid for your skills and usefulness. Toast to "jobs that pay the rent." (The Devil wears Prada)
I don't see a reason why you would want to keep doing what you're doing in quadrant 4 under normal circumstances. You are not even doing good service there. Get out of there for the sake of everyone including you.
A job can migrate from one quadrant to another quadrant over time. It would be helpful to see where what you do belongs.
Some people have many loves for which they also have good skills. In this case, time is the restraint and they may choose a main "job" then take up a second "job."
The "job" may or may not be a BIG thing that makes you very rich. Sometimes what you love and are good at is not the type of work that gets you very rich. Bigger money is associated with bigger value, so if you are after money you need to take it into account additionally.
Also, nowadays even highly skilled and motivated people can lose their job and have a hard time finding another position. It's just like that. We may not always get to choose what we do for a living, but it is more rewarding to do what you love and are good at.
On a different topic. Someone in my Facebook posted a link to this YouTube video, and I found it quite hilarious. The maker(s), tangocynic, knows this Tango business very well.
"So you want to learn Tango?"
https://www.youtube.com/watch?feature=player_embedded&v=JQ2u-xLu-QI
Disclaimer: This is not my video, I don't know the maker(s), and I don't have vested interest in them. All rights belong to them.