Deciding between diving deep into learning React or getting ready for interviews depends on your primary goals and current situation. If you are aiming for front-end development roles, particularly those that heavily utilize JavaScript frameworks, investing time in learning React can be beneficial. React is a widely-used library that empowers you to build dynamic and responsive user interfaces, and having proficiency in it can significantly boost your appeal to employers looking for candidates with strong front-end skills.

On the other hand, if you are actively seeking a job and need to secure a position soon, focusing on getting interview-ready might take precedence. This means honing soft skills like communication, practicing common interview questions, and understanding algorithms and data structures, as these are frequently covered in technical interviews. Being well-prepared for interviews can increase your confidence and improve your performance significantly.

In conclusion, if you can balance both, that would be ideal. However, if you need to choose one, align your choice with your immediate career goals: opt for React if you need to bolster your technical skills for future opportunities, or lean towards interview preparation if you are applying for jobs right now.