>>12335787Learning is a skill, and learning how to learn is absolutely vital if you hope to use math. Being unable to learn something, given sufficient effort, implies your method of understanding the world around you is in some way faulty. Taking advice from others is a good first step, but the best method that works for you can only be discovered in your own time, as nobody else thinks and learns exactly the same as you.
If we suppose your issue is not a lack of skill, learning takes time and effort. As can be assumed, the better one's skill at learning, the less time and effort it takes. Thus, if the method of learning is good, it largely becomes a matter of time and patience, themselves dictated by the difficulty of the material and mental capacity. If sufficient skill in learning is assumed, then a lack in mental ability or virtue, such as patience, must be assumed.
>>12335830It can be easily assumed that you're not putting in any effort. Just watching a video and expecting it to all make sense, when you've already been struggling, says to me that you're expecting it to come easily, with minimal effort on your part. Rather than simply watch a video, try following along with notes, pausing and rewinding as needed. Later with your notes, in any spot where there's a number, one at a time, replace it with one of your own values. Using the help of the video if needed, work out the problem.