Stuck thinking about her for over 10 years now. What should I do?

Guys, I've been thinking about the same girl every day for the past ten years. Like, seriously every single day. Been through four different relationships, I've had this guilt inside me because I wasn't with the girl I truly wanted. When I first saw her, it felt like time stopped, I can still see her face clearly even after all these years.

We still chat but haven't met in person for four years. We never dated, just childhood friends with mutual feelings back then. Recently, we both got out of relationships, but her breakup hit her harder. Trying to be a good friend, I've kept my feelings inside, especially during her tough times. Reconnecting with her now feels really scary because I'm scared I might confess out my feelings.

She's made it clear that she’s not looking for a new relationship right now, but I'm worried she'll find someone else before I get the guts to tell her how I feel. She’s still the same awesome person I knew, and I think we're even more compatible now. I've tried to distance myself from her before, but it just made my feelings grow stronger. I’m stuck in this loop. If I tell her, I might lose her as a friend, but if I don't, I'll carry this burden forever.

Should I risk it and tell her how I feel or just try to move on?