There are many ways to learn to code these days. From coding bootcamps like Flatiron School to online courses to totally free beginner resources. The best way to learn to code depends on many factors, but the most important one is you. See what course is best for you.
Can you better define what you are trying to accomplish? As LEEW mentions, if you just want sortability then using YYYYMMDD is often enough. But if you want to be able to do some date math, like find the number of days between two dates, then I convert to Julian. Attached are two versions of a conversion routine I have used. One assumes the date passed to it is in YYYYMMDD format, the other accepts a slightly more flexible date string and tries to intelligently parse it.
~bp
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