How I do it is I set a time limit to solve a Kata. If I really can't see a solution within the time limit, I google how to solve the problem. Then I get the tests to pass, submit and compare my solution with others. I then save examples of anything I have learned to repl.it - I then have a toolbox of solutions to refer to (no Kata spoilers saved here I might add!) I also make sure that I understand how any new features or builtin functions of the language I've learned work. I don't rush to complete Kata, I try to take my time, I usually only do one a day, and spend about an hour a day in total on all of the above work I have described. I've already levelled up from 8 to 6 and that's in less than 2 months. Little by little. My goal is to become a code wars Sensei and level up to the extent that I can help others.

relax man, just get enough practice and you will remember methods and what they are do

Do you have any tips to get better at solving these problems because I just recently finished a tutorial and it is not really helping me to solve these questions?

Can someone explain what is happening in this code Im kind of new in JavaScript and I have no idea what that code is doing.