@Lothric
If you're coming from a liberal arts background, I hope you have at least a good foundation from high school biology and chemistry.
Stuff like balancing equations and a bit or lf understanding on both organic and inorganic chemistry.
If you don't, check the syllabus of an engineering major program and you will still see some chemistry units needed.
You can then go to Khan’s Academy to take lectures from there.
I would not have you go down the road of reading Warburg, St-Georgyi, Long but you can get straight to reading Peat’s books and articles. And then every time you encounter something new, go into your own sidebar and study that topic before going back to finish reading that article or section (if it's a book).
But that is going to still be overwhelming. As Ray has written so much and you can't possibly read everything even if you were so determined (if you're like me).
It would be better to do a search on a topic that is relevant to you at that moment and search thru a database that contains all his written works.
I currently just have his 4 books, and his newsletters, but have yet to gather his other writings as well as transcripts from interviews, and don't see myself having enough time to do these.
Still, I do a search on my phone with a paid search program on what I got so far.
It has helped me a lot in understanding his principles very well. It allows me to form my own knowledge base that I draw from in problem solving my own pathology, and help others.
And it helps me too when I post answers to questions from members, as formulating answers in sharing ideas further helps me develop connections informing coherent answers to problems. And for me, that is the best way to learn. Especially when you are questioned as if a panel of advisers are questioning and interrogating you on your answers.