Another proverb is, do not bite off more than you can chew. This means do not try to do more than you are able to do.

另一个谚语是，不要咬掉比你可以咀嚼的多（贪多嚼不烂）。意思是不要试图去做超出你能力范围之外的事。

youdao

Do your best. Do whatever you can, but don't bite off more than you can chew.

努力去做，但不要眼高手低做你能力以外的事情。

youdao

For example, are you trying to go to the gym, get the kids ready for school, do laundry, and walk the dog all before 9:00 a. m.? Make sure you don't bite off more than you can chew.

举个例子，你有没有计划在早上9：00之前全部搞定健身运动、送小孩上学、洗衣服和遛狗？请量力而行，不要奢望一口吃成胖子。

youdao

Another proverb is,do not bite off more than you can chew.

VOA: special.2009.08.30

You don't want to bite off more than you can chew.

CNN: Commentary: Obama's ambitious agenda a good thing

Nissan also knows from experience that it's unwise to bite off more than you can chew.

FORBES: Nissan readies a big rollout of new cars and trucks.