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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
Don't feel too bad about loops and conditions, most real world problems you run into won't have a nice standard function like the strips to do half the work for you.
You are well on your way to being a great programmer. You don't lack an innate capability or intelligence if you got this far!