watch the videos Neural Networks from the Ground Up (19 minutes) and Gradient Descent - How Neural Networks Learn (21 minutes) It will help you getting familiar with the vocabulary and basic concepts in machine learning and get a first intuition for their meaning. Don't worry if you do not understand everything viewing it the first time, and maybe you want to watch the videos again at a later point in the course to understand more details.
do the introductory course on the basics of Python if you do not have any experience in Python yet: https://www.kaggle.com/learn/python