I’m 17 and sitting in my high school guidance counsellor’s office. She’s asking me what I want to do with my life and I have no idea.

“What are you really passionate about,” she asks. Awkward silence. What I want to say is playing computer games. Ever since 5th grade I’ve been hooked. But I’m not sure that’s a career. Then she says this: “The most important thing is to follow your heart.”

It’s something I would hear over and over again through the years -- from my parents, university counselors and mentors. The smartest people I knew offered that same piece of advice: do what you love.

Aligning your passions with your career makes sense. But, let’s be honest, it’s not always that easy. The real challenge -- especially for future entrepreneurs -- can be uncovering exactly what you’re passionate about and why, then finding a way to keep that flame alive while the rest of life happens all around you.

Letting your calling come to you

Some people were born knowing they want to teach, or dance, or design cars. For many budding entrepreneurs, however, interests run in lots of directions, all at once, or sometimes in no clear direction at all. Steve Jobs, for instance, wandered India, experimented with psychedelics and even dabbled in calligraphy before starting Apple.

Ultimately, I majored in business in college, but it all felt too abstract for me. So, I ended up dropping out to open a pizza joint back in my hometown in rural western Canada. It took me a few years to realize what I really liked about the pizza business wasn’t pizza at all. It was marketing -- getting into people’s heads and figuring out exactly which promotions would boost sales.

Passions won’t always jump out at you and that’s fine. Sometimes you have to do a little living first to figure things out. It just so happened that I discovered a passion for marketing via a pepperoni detour.

Engineering serendipity

Around this time, I noticed people were making a lot more money working with the Internet than I was working with pizza. I didn’t know exactly how to break into tech, but I knew it wasn’t going to happen in my little hometown.

I sold my restaurant and moved to the big city, Vancouver. For a newbie, the easiest way into tech was web design. I home-schooled myself on the basics and scraped together a portfolio. The tech space in the late 1990s was so hot that I managed to land a job at a dotcom with almost no experience.

I got lucky. But being in the right place at the right time was not just an accident. So many entrepreneurial success stories seem to begin with a twist of fate -- from Zuckerberg meeting the Winklevoss twins to Henry Ford landing his first job at Edison Illuminating Company. What’s important to recognize is that successful entrepreneurs put themselves in a position to get lucky. They engineer their own serendipity.

Keeping the flame burning

By now, I knew I wanted a startup of my own. But my timing was terrible. In 2000 -- months after I struck out to start my own business -- the dotcom boom went bust. Tech became a dirty word and investors shied away from new ventures.

But I plugged away, piecing together enough work to pay the bills and slowly grow my own web-development firm, designing websites for companies and building marketing apps. It wasn’t always thrilling but it was in my wheelhouse -- and it paid the bills.

My point for entrepreneurs is I didn’t abandon my passions completely. I found ways, sometimes just small ones, to build them into my work life. The startup experience can look from the outside like a rocket-ship ride. It rarely is. Steven Boal of Coupons.com -- which recently IPO’d for more than $1 billion -- has said, “I get a lot of amusement out of people who call us an overnight success. [It was a] 12-year night.”

Finding ways to stay inspired during that time when the work itself may not be all that inspiring is a key to success.

Your ‘job’ becomes your passion

Eventually, however, you have to take the plunge. In 2008, my team hacked together a tool to help companies manage multiple social-media accounts from one website and called it Hootsuite. Hundreds of thousands of people signed up in the first few months. I decided to pour everything I had into it, at the expense of other projects bringing in good revenue.

Nearly every successful entrepreneur has this decisive moment. It will normally come at the middle of a long, difficult journey -- not the beginning. Over the years, real passions grow clearer and mere distractions fade away. At the same time, critical skills have time to develop. This is the essence of Malcolm Gladwell’s 10,000-hour rule. Then, if you’re lucky, you get a shot to double down on your dream.

But it rarely comes without risk. Doing what you love will never be easy or convenient. Managing risk is something entrepreneurs need to get very good at - personal passion turns out to be one of those risks. In the best cases, a sort of alchemy happens. Your “job” actually becomes your passion -- absorbing your earlier loves and interests, adding to them and making something even greater.

The grey area between love and reason

Today, my social-media management tool is used by 11 million people, including most of the Fortune 100 companies. A childhood passion for computer games has come full circle, so to speak, though not in the way I might have expected.

But here’s the thing: I wouldn’t be here if I had just followed my heart all those years ago. If so, I probably would have ended up studying computer science in college. I might have loved it and gotten a great job. But I’m glad I didn’t go down that path.

Instead, I waded into that grey area most of us live in -- where the desire for career fulfillment clashes with the need to make money, ego and simple indecision. Almost every entrepreneur I know has spent hard years in this limbo, figuring out exactly what they love and ways to act on it.

This isn’t as romantic or inspiring as just saying, “Do what you love,” but it’s an important piece of advice for entrepreneurs on the frontlines: You can’t always follow your heart, but don’t give up on it. Where passion and pragmatism meet, great things happen.