What you shouldn't do
Construct your plot, characters, or story based on a schema or formula from a how-to book. The result will be schematic and formulaic instead of original and vivid.
What you might find helpful
Read how-to books and put them away.
When you want to write Fantasy, you don't have The Lord of the Rings open beside your laptop and faithfully copy its characters and story into your own. What you do is you read it, put it on a shelf, and go on to do other things in your life, while what you have read works in the back of your mind, combining with other things you have read, experiences you have had, and knowledge that you have acquired, until an idea of your own grows from all that you are. Similarly, a how-to book should not become a blueprint for your book, but should be considered input.
Use the information in how-to books to identify weak spots in your outline, concept, or draft.
When you are unsure about your characters, or your beta readers have pointed out plot problems and you do not know how to overcome them, read around in some how-to books and see if they can illuminate the problem and suggest a solution.
But remember what you shouldn't do and what you might find helpful, and put the how-to book away before you resume writing.
What you might find even more helpful
Read a lot of what you want to write.
That is, do not (or not primarily) read how-to books, when you want to learn to write, but examples of the kind of text you want to write.
Write the next book.
That is, do not dwell on your first attempt, but rather attempt another.
You learned to speak your mother tongue and ride a bike not from a how-to-speak or how-to-ride-a-bike book, but from observing other speakers and cyclists and trying what you saw on your own. The way that language and skills are taught in school, by memorizing lists of vocabulary and rules of grammar is unnatural and ineffective. Do not use it as a model for learning when you want to acquire a skill on your own. Find a master to observe and practise what you see.