Here's a weekly routine that could help improve your ReactJS skills:

Day 1: Monday

• Read the official React documentation to refresh your knowledge of the fundamentals.
• Review the latest changes and updates to the React ecosystem.
• Create a small project using Create React App to practice working with components and props.

Day 2: Tuesday

• Attend a local React meetup or join a virtual React community to connect with other developers.
• Participate in discussions, ask questions, and share your own knowledge and experiences.
• Watch a React conference talk or workshop to learn about new tools, techniques, or best practices.

Day 3: Wednesday

• Learn about advanced React topics such as React hooks, context, and portals.
• Implement these concepts in your previous project or a new one to deepen your understanding.

Day 4: Thursday

• Test your React knowledge with quizzes or challenges, such as those available on CodePen or Scrimba.
• Experiment with CSS-in-JS libraries like Emotion or Styled Components to improve your styling skills.

Day 5: Friday

• Contribute to an open-source React project on GitHub to gain experience working in a collaborative environment.
• Review and provide feedback on others' pull requests or issues to improve your code review skills.

Day 6: Saturday