Hope!

Finally, I got an abstract concept of what is mature.

Which is, the opposite side of immature.

Of course, I'm not learning English now.

WHat I mean is,

With my growing up till now, with so many people I have met,

There are so much lessons which taught me what is immature.

Such as, irresponsible , too sensitive ,  and  I think the most important part is  the lack of respect

Carelessness about the situation ,occasion and emotion , which will seriously destroy the relationship.

Fine , I think I have set the typical type of this, which means , I have the largest room for improving that.