Essentially you'd need to know what is it that you want to learn or what are you aiming to achieve. learning everything is great but not always necessary. Finding information on certain technical topics should not be that hard as there are many collections on various subjects that you can download altogether. Lets say that you are trying to learn something that has 3 different sub-classes. You may want to break it down into 3 sets of 2-day learning of each sub-class, that way you will learn what you need without missing out on certain information that has to do with other sub-class. Always take down notes of your understanding of the subject so you can track your progress. Its basically the same as learning from offline material depending on what the subject is. Diagrams and charts are also good materials to help you memorize your information.