with familiarity you learn the trick (idiom); practice makes perfect
熟 · 15 strokes
Phonosemantic compound. 灬 represents the meaning and 孰 represents the sound.
能 · 10 strokes
Pictograph of a bear. Based on the original meaning "bear". The meaning of this character has shifted over time to mean "strong" and "ability, power". Original form of 熊.
生 · 5 strokes
Pictograph of a sprout (屮) emerging from the ground (一).
巧 · 5 strokes
Phonosemantic compound. 工 represents the meaning and 丂 represents the sound.
别着急，练多了自然熟能生巧。
Don't worry; practice makes perfect.