First of all, many thanks for this detailed response. It is a really huge support for me right now!
Then I will do what I can. Because after 4 months, I will need to start working. I’m tired of working for money and survival. But for these 4 months, I can come to idea like: “Work for pleasure” . And if I can imagine that I may not have such a chance in the future, I will try to use it completely.
I completely forgot about this super-post with lots of useful information. Thanks for your link)