Be honest with yourself about what sparks you and take action on it. Don't worry about finding your one true "passion." That's too abstract of a concept to figure out logically. Instead, start by acting on the small things that excite you each day.
Get in the habit of recognizing and acting on the small things that you feel drawn to. These things will eventually lead you to the bigger, more meaningful things that you may define as your "passion" or "purpose."
This process works because excitement is an organizing and unifying energy. All excitement interconnected.
In other words, the "small" things that excite you or spark joy are connected to your bigger desires, even if you can’t see how. Even if they seem mundane, trivial or unrelated to your larger goals, the excitement tells you that they ARE connected.
Your conscious brain does not need to know how they are connected. That is the job of the subconscious mind.
Bottom line: Do not invalidate the things that excite you just because they seem trivial or because you can't see how they tie into your "big picture goals." It's not your job to know how it's all connected, it is your job to honor what excites you by ACTING on it.