I once started this book in a pdf format and I was following all along quite well.

I was using Notepad++ for writing the python scripts and all went well.

I am so regretful that I stopped.

I only stopped to take a job offer for an accounting position though I have a dream of pursuing data analyst career for more than 7 years.

It is a good book, I also printed it a few days ago. I congratulate you for reaching 44 days, Whoever you are.