How to avoid plagiarism

For me, an EFL writer, writing in English itself is a heavy burden.

It scares me that I have to follow so many rules to avoid plagiarism.
Here, I want to summary my understading on how to avoid plagiarism.

1. Use of quotes
Quotes must be used in the case of the whole sentence in part of the materials, important phrases, words and sentences are used without changing.

2. Paraphrase
Paraphrase is converting the sentence or word into my word with new word and new sentence. But still quotes should be used if it is not my idea.

3. Summaries
This is the work that summary the chapters and add it on my writing.