do not bite off more than you can chew
Definition:  a person should not take more responsibilities than he can handle
Usage:  I bit off more than I can chew when I said ‘yes’ to my boss for another project

SEPEDI
Translation:  o se ke wa kgema tšeo o ka palelwa go ke go di sohla
Proverb: dipshio tša tlou ga di pataganywe

XITSONGA
Translation:  u nga lumi leswi u nga taka u nga koti ku swi ncakunya
Proverb: i mhunti yo fela etinyaweni

TSHIVENḒA
Translation:  u songo ṅwata zwi fhiraho vhukoni hau ha u shenga
Proverb: a ri dzheni ṋari ri si na mmbwa