I Understand what you mean to say here. The same thing happened to me. But all you can do is learn one thing at a time or even multiple things but then you will get confused. Best way to do it is to start slow and don’t think about efficiency or learning a lot right away. Just pick some topic you like and stick to it and extract as much as you can from it. Then gradually you can increase your efficiency by learning multiple things on the same day or whatever. But keep it simple and slow to start with.
