Learning through process

Sometimes it's really hard to notice how much we have learnt from just doing. Human beings are ,of course , one kind of the most intelligent creatures in the world, and people do learn everything in any ways. It could be communication, books, the Internet and even just doing.
Without second thought, people are usually able to memorize or learn the skills to some extent of what they are using or doing, and sometimes we are just not aware of that. It's been said that learning a second language is absolutely frustrating and exhausting. At first, I have to say that I cannot agree with it more. But things have changed recently. I turn out to be on the other side of that theory now. I think what cause us feel negative in learning a second language are mainly due to the unawarenesses of how much we've gotten. If we don't know the progress of learning, it's impossible to find where problems are, and they would be another biggest obstacles on the path of mastering it. So it calls for an inquiry, " how can we know the flow of learning"? It's kind of an abstract idea to understand. Let's go back to review the topic sentence. Yes, we learn while thinking, doing, reading, practicing and so forth spontaneously. It won't stop just because you don't want to learn. Therefore, there are no ways to say" I picked up nothing after working hard."