Thumbnail help

[quartz moon]

Weirdly I work with design and colors all the time, although game development is a completely different area of expertise. So graphic design for thumbnails is... a lot harder to nail down. My first video is about anxiety, fear of trying new things, not waking up one day regretting all the things you didn't do. And I'm having a very hard time imagining a thumbnail with that, but this is what I came up with.

This can definitely be improved. Hell it might even suck, but I can't put my finger on what, why or how.

Any pointers will be greatly appreciated.

[spiral blade]

So, to me, the thumb is more oriented towards fear.

The text is bright and inviting, like you overcome fear, but the image contradicts that by being largely fear oriented.

I'd look at some other similar videos and see what they do.

Because I've no idea What could work here