If you want the full version and license for commercial use,
you can purchase here :

https://staircaselab.com/product/sweet-belinnda/

File Font Version : 

1. Sweet Belinda.otf
2. Sweet Belinda.ttf
3. Sweet Belinda.woff
4. Sweet Belinda Italic.otf
5. Sweet Belinda Italic.ttf
6. Sweet Belinda Italic.woff