Being a non-tech surely has put you on the back foot. But don't worry, you will be amazed by the number of non-tech professionals who enroll in well recognized paid training in the field of Big Data and master Big Data skills. You must master Databases, Statistics, Probability, Data processing, analytics, Hadoop & Spark, Spark frameworks, ML, Data Visualization, etc. All of these could be learned by enrolling in Intellipaat's Postgraduate Course in Big Data Analytics Certification.
I will post a video wherein a customer of this course who enrolled in this course and has rated this course to be industry-grade. With this IBM collaborated course, he became a Big Data expert despite being from a non-tech background.