Should I keep lending my coworker or I can say supposedly a friend as everyone says money when ever she needs it bc lately that’s what I’ve been doin?

At first it’s been little amount of money such as 20$ 30 or 50$ now those past weeks one time she asked 200 than right after that 45 for gas as she said than literally a few days past she is in need of 350 bc she got to send it to her brother in a different country he is currently in need anways I didn’t mind at first lending money bc it was occasionally now days it’s been often what should I do? Keep lending her or nicely stop it see I guess I’m a people pleaser like I will do it to be nice I mean I am nice but I don’t want to hurt people feelings but I don't know what would y’all do

Updates
5 mo
She says it’s easier to ask me than anyone
Should I keep lending my coworker or I can say supposedly a friend as everyone says money when ever she needs it bc lately that’s what I’ve been doin?
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