Correct

量力

/ liànglì / 
Strokes

Definition

to estimate one's strength

Example

As a Verb

estimate one's own strength/ability (and act accordingly)

1
Nǐ
你
zhèyàng
这样
zuò
做
jiǎnzhí
简直
shì
是
jīdàn
鸡蛋
pèng
碰
shítou
石头
  
,
tài
太
bù
不
liànglì
量力
le
了
  
。

What you are doing is like an egg striking a rock―you're simply overreaching yourself.