@Loh Jane,
Loh Jane wrote:
Hi English Teachers,
Is my sentence acceptable? Thanks a lot for your help.
I feel exhausted when I must cater to my parents’ needs after working.
It's fine for conversational use. It might be improved by saying, "I feel exhausted when I must cater to my parents’ needs after a day of working" or "I feel exhausted when I must cater to my parents’ needs after my work shift."
The use of cater is quite clever in this sentence.