Does anyone have 钢琴 tips?

Practice your 屁股 off.

One thing 你 must always remember is the treble clef line is obviously the melody and is played with your right. It also is usually what a singer would be following as well. a good way to remember the notes is Every Good Boy Deserves 做傻事, 福吉
E
G
B
F
for spaces FACE
F
A
C
E
then the line below it is base clef which is played with the left hand and is the harmony.
a way to remember the notes is Boys Deserve 做傻事, 福吉 Always
B
D
F
A
for spaces All Cows Eat Grass
A
C
E
G

Try playing just the melody 或者 just the harmony at first till 你 get used to it then add both. Its not too confusing once 你 get used to it trust me.
Another thing that could help is learning pitches with your ears as well. A finely trained ear can always help you. Especially if 你 know the song.