CodeWars Challenges: Visit Here
A repository filled with codewars challenges (kata). Pushing 5 solutions every week.
Tech used: 
To stay sharp, I make it a habit to complete one familiar and one new coding Kata each weekday.
I regularly improve my code through refactoring, focusing either on enhancing efficiency or making it more readable.
I've learned that while many problems have multiple valid solutions, a correct answer isn't always the most efficient or elegant. Writing better code often means going beyond correctness to find the most effective approach.