worrywart
🇺🇸
/ˈwɜːriwɔːrt/
🇬🇧
/ˈwʌriwɔːt/
a person who often worries about things, especially things that are not very important
My mom is such a worrywart; she's always stressing about something.
我媽媽真的是個愛擔心的人,她總是為了一些事情感到緊張。