"Putting too much pressure on oneself" 或 "Putting oneself under too much pressure" 可以用来表示给自己太大压力的意思。
这个短语的来源可能源于人们对于自己的期望和要求过高，导致自己感到压力山大。
例句：
I know I should take it easy, but I can't help putting too much pressure on myself.
She always puts herself under too much pressure, and it's not healthy.
中文翻译：
我知道我应该放松一点，但我总是给自己太大压力。
她总是给自己太大压力，这不健康。