If you've watched all or any of my series Up and Running with Gatsby, I owe you a huge THANK YOU! I really hope you feel like you've learned the skills you'll need to build real world static sites with Gatsby.
The two main places to go from here are Gatsby themes and Gatsby performance. Themes let you extract both design and functionality into re-usable packages. Performance encompasses things like PWAs, offline support, and perfecting your Lighthouse audits. Gatsby is meant to be blazingly fast, so don't be afraid to go deep!
Thank you again for watching this series of tutorials! Feel free to reach out to me out Twitter if you need anything. See you soon!