The problem isn't the rate of intake but retention. If you are in your 30's chances are you forget things you've learned as fast as you learn new things doing w

The problem isn't the rate of intake but retention. If you are in your 30's chances are you forget things you've learned as fast as you learn new things doing what you currently do, basically constantly moving but never getting anywhere. So instead of worrying about intake, try to think about what you already know and go from there. Make it solid so you don't forget it, and just build upwards. After a while building a solid foundation you'll likely find that there aren't actually that much information you want to ingest, it just felt endless since you constantly went through the same similar concepts over and over.