Reread the important materials. Or listen to/watch them again. Remember, the point is not to consume the most information, but to absorb and apply the most useful or important things. If you find something is important and offers valuable takeaways, read again once you are done. Take notes on the useful parts. Review those notes. It doesn’t matter if you read a book twice in a row or wait months between readings, just know that if you are looking to really absorb the material a one-time read is probably not going to accomplish that goal.