Start with getting to know JavaScript Ecosystem
Read Official Docs
Learn key patterns HOCs & Render Props
Get to know recommended UI & Styling tools
Learn how to build forms in React, without the tears 😭
Build Single Page App 🚀with Router & API calls
Write tests. Not too many. Mostly integration.
Use Redux to cross component state management
Learn how to extract package or contribute fix/feature to package you use
Build SEO friendly static-progressive React applications and websites
Get to know GraphQL and strong typed development