When you're just starting out at something, it's hard. There will be days you feel like quitting because you're new at it. And, it's hard to love or be passionate about something when you're a beginner.
But then, as you gain more skill and experience, you catch the 'bug' and it becomes more energizing.
Which is why it's important to work hard at the things you're already naturally good at or in a position to get good at.
Passion comes with time. It then becomes a driver of hard work which (coming full circle) yields great work.