The objective of a cover letter and a resume is to… get you an interview.
That’s it.
They are not designed to get you a job. That’s what an interview is for.
When it’s clear folks don’t understand this the result is often an overly-detailed cover letter and resume that go on for pages.
I might need an extra beer to read all of this.
Some fields, such as academics, may expect and require the “two beer” version, but most don’t.
As you think about preparing your cover letter and resume, think about the readers, at a prospective employer. As you understand their needs and requirements, then prepare these documents in a way that meets THEIR needs.
That may mean that you omit things that aren’t relevant, or move things around so they read the most important things first.
Do your homework. Figure out what will be of value to a prospective employer. Then give it to them.
There are training videos on the web site of my faith community and a handout. This content is free: https://www.thetablempls.com/jobresources
Mark Hirschfeld 
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