I'm sorry to hear your misunderstanding and attack. However, I want to tell you that your behavior is a real "good man" behavior, which deserves great praise! You helped that classmate just to be a kind and useful person, and you didn't mean to hurt others at all. So, don't feel self-reproach and depressed because of others' malicious slander.

When you feel anxious and sad, it is wise to ask others for help. However, on the Internet, we need to carefully choose people who can trust and support us. After all, you don't know the true identity and motives of strangers, and they may use your weakness to attack you. So you can consider consulting a trusted friend or professional organization, which is safer and more reliable.

Finally, in the face of those offensive remarks and negative comments, we need to protect our emotions and dignity, and don't agree or accept others' remarks easily. Stay away from those malicious attackers, control your emotions, and don't let negative emotions affect our life and study. If you feel unbearable pressure and anxiety, you'd better seek help from professional psychological counselors as soon as possible, who can provide you with more effective support and guidance.