I have been subscribed to Jeremy’s channel on YouTube since before he was scavenging defunct washing machines for parts.  He has just published a grand video where he nails his 26 tips for learning fast onto the doors.  His wisdom is rooted deep in his practice. He is very clear to articulate that this is how HE learns not how TO learn.  The application of his tips is left to you, but here is one of my favorites:

Remember your goal at this point is not to have mastery over this. You just want to shine enough light on the path in front of you so that you can keep walking forward.