I usually watch courses two times exactly because there’s a lot of information to be retained when it comes to these 3D software’s. I watch them once as a movie, just chill and paying attention and then when it’s over I go back to the start and watch it again only this time is with hands on and following along. It’s takes more time like that but it’s a great approach to things sticking in your head. In Blender there is too much information, you have to practice a lot.