What do I do when I made the mistake of trying to be friends and placate harasser men children at work?

What do I do when I made the mistake of trying to be friends and placate harasser men children at work? I am a woman in my 20s. I have started ignoring them except when nececessay. One has gotten anther man child to start harassing me now as well.
What do I do when I made the mistake of trying to be friends and placate harasser men children at work?
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