I think the OPs first paragraph, especially her second and third sentences, are well worth reading an rereading and duly noting, considering and acting upon. She surely is not the only one tested with such an endeavor here. Mitigation of this danger by duly changing the moderation of this place should be implemented forthwith.
It also must serve as a warning as to the extreme dangers of the internet overall. Many previously frum people have r’l fallen to the depths never to recover from this exact pitfall.