You don't have a passion...
-If you do you can't not follow it. That is what passion is.
Unless it's unavoidable, don't try to substitute it with just the thing you find most enjoyable. If we all did that, Gillette would be the world's most valuable company and we'd all be blind by now.
Do you like computer games and wonder whether you should try do be the next Minecraft guy? Do you like singing in the shower and think you might be the next Lady Gaga/PSY/Taylor Swift/Sia/Ariane Grande/Sam Smith? Do you like explosions and think about becoming a chemistry teacher or a Nobel Prize winner (my thoughts when I was 18)?
The answer is NO, you shouldn't. Just wondering means it's not a passion, it's just something you like. But that's okay, almost nobody is passionate abut anything. Rather than trying to find a passion, you should actively try to avoid whatever bouts of improductive interests entice you, but more about that below.
Steve Jobs infected you with the idea of passion
The last couple of decades the notion that you should follow your passion has been more and more popularized. Apple's founder Steve Jobs is guilty of spreading that meme (idea virus). Not least since he became extremely successful doing what he said he was passionate about.
Focus on skills is making a comeback
However, lately, the opposite career advise is gaining foothold again (i.e., what was always the advice before Jobs).
Cal Newport's research, e.g., shows historically poor readings for job satisfaction among people in their 20's - exactly those that have been exposed to the follow your passion meme. They seem to be more and more miserable for every new position they take up in their never ending search for the perfect job.
People who try to follow their (artistic) passion end up as miserable semi-prostitutes in the outskirts of Los Angeles. In fact they will probably never understand that they actually didn't follow their passion. They were just brainwashed by the media that fame and fortune was both attainable and desirable. They should have focused on building a skill instead:
Leverage your best combination of valuable skill and interest
This is what research says you should do, if you want a career that makes you both successful and happy (more on that issue in this post about whether you want results or happiness, as well as in this and this post).
You should create a matrix of 1) what's valuable in society and 2) what you are reasonably interested in. Then you should immerse yourself, for 5-10 years, in the area that has the most promising combination of value/interest for you. As your skill improves with time, your appreciation of it will rise. Hence, if you started out "interested", a few years later you would be a couple of steps closer to "passionate". In addition, your value and potential leverage/power/independence will rise in lockstep. At a certain point you can use that power to attain lifestyle traits that are important to you (e.g., working less, avoiding e-mail, being more creative). Cal Newport's book about skills and passion expands on that theme.
If you are interested in Cal's research about job satisfaction and you are around 25 years old as well as have 35 minutes to spend, you should check out Cal's talk here. Please note that he doesn't really say anything more than what I have already done here. It could still be worthwhile, however, if you are more of a video and audio person.
Ludvig at SGM has also written a good post about this topic, with a comment section to match it.
Summary: Try to avoid following your passion
If you just can't help yourself, can't avoid immersing yourself in what's drawing you in, then you are already following your passion. And that's a good thing for you. You will be happy no matter if you are successful or not, and you would be miserable if something managed to keep you from your passion. However, 99% of the population don't have that obsession; and if you are one of those, don't follow what is only a whim or a lust.
If you, with some effort, can divert your efforts to developing a valuable skill, instead of doing what you like, then you should do that. Expressed differently, if you can avoid it, it's not a passion and thus you'd better not follow that path unless it is productive.
The passion recommendation is a tautology
But if you just physically can not stop yourself from whatever it is that is your obsession, then you must follow that passion. And that is not advice it is just a logically factual statement; a tautology even. If it is impossible to keep away from an activity then the only possibility is that activity; a must.
You may not be passionate about statistics, programming, economics or this blog, but you still should study those topics to awaken a possibly dormant, productive, interest.
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