Primary Texts vs Secondary, Tertiary Texts etc ...

Just a tip, I've found - rather than diving directly into Primary Texts (NB: Primary Texts NOT Primary Sources) such as:

• Religious Texts e.g.
• Bible
• Quran
• etc ...
• University Textbooks 
• etc ...

Which are all generally very hard to read (and therefore understand);
 

Look to digesting Secondary Texts such as web sites, books written by 3rd party authors etc ... you will find this much more relevant to your everyday life!