Thanks for your advice, Pianistimo. I'm still working on different dynamics as you suggest but my fingers seem to have their own brains and refuse to follow my instructions.
This is just the beginning... I went to fifth lesson today, my teacher taught me to play F and P by telling story.. it was interesting!

hmmm...
I used to take piano course at a traditional music school many years back. After 4 months, I gave up. Because the pieces were getting more and more difficult while I still found it hard to sight read, count rhythm, and remember the chords, scales & signs.
Compare to Snowman's Dream method, just one month (4 lessons) and I feel I've improved lots. I spend less time and effort trying to read notes or figure out the piece. I'm taught to use imagination to turn notes & chords into pictures.
For examples,
imagine how these notes look like on staff
[C+E+G] - it does look like a Snowman (C = foot, E = belly, G = head)
[C+G] - a snowman without belly
[C and E and G in order] - a falling snowman
[C+F+A] - a snowman with wandering feet
[B+D+G] - a snowman with wandering head
On counting rhythm,
4 sixteenth notes with joining flags look like a set of birthday candle so you count birth-day-can-dle
2 eight notes with joining flags look like a pair of cherry so you count cher-ry
To my understanding, it's called Snowman's dream method because the chord does look like the Snowman.
This method was invented by Dr. Wei Tsin Fu. It is said to apply knowledge about human brain functions to piano lessons, developing the left and right brains, cerebellum, bone marrow and nervous system through playing music.
You can read more about Snowman's dream method on this website:
https://www.musikfoyer.de/aboutus.html