Coding and building teach you more than taking a course or watching a video. If you don't have any programming background, you can enroll in some coursera or udacity courses to start with. Then go through this course http://web.stanford.edu/class/cs106x/, the course reader is really good. After that for data engineering read this book https://www.amazon.com/Designing-Data-Intensive-Applications.... Also learn some sql. Take some data, feed into sql light db, and ask question and convert question into query. Becoming good at this takes some time. Be patience. The learning curve is like hokey stick, initial phase might have a dip but it accelerate in the later phase. BY ANY CHANCE DO NOT JOIN A BOOTCAMP.

Thanks. I'm actually in middle of cs106 and indeed the reader is pretty good. I also have the intensive book which I read a bit but think I need more technical muscle for it.