Tips on how to level up as a frontend developer ?

I'm a Frontend Engineer (React JS) with around 5 years of experience. I have recently started focusing on levelling up my technical skills to land a Senior Frontend Role at a MANG level company. My timeline is ~ 6-9 months. Resources I am currently using:

1. Web dev by Google : to revise and improve my knowledge of web development basics.
2. Patterns.dev : To learn about various JS patterns.
3. Greatfrontend.com : To level up on system design.
4. Leetcode : DSA & Algorithms Would like to know if fellow developers have any advice for me! :)