Own your mistake apologize and dont do it again. For the people grassing you up I suggest looking for a friend somewhere in your class and ask for support. I've had to deal with some bullies. Generally, they look for a group of people or environment where people are okay with the vulnerable person being physically or emotionally harmed. Women are more likely to do indirect aggression or passive aggression where men are on average more violent. Passive aggression/social aggression/bullying is doing things usually to emotionally harm people and carefully masking it. In some ways it seems and feels particularly pernicious because the victim usually has nothing substantive to point to. But everyone can see and knows when bullying is occurring. Social aggression can be verbal, indirect accusations, cutting someone off from a group, cutting someone off verbally etc.
Personally I hate bullies. Bullies look for an environment where no one will stand up for the person being bullied. A kind of social outcast. They will do things to physically or emotionally harm the bullied person. When I see someone who i suspect to be a bully searching for validation of their dislike of someone or a kind of green light to turn against that person i feed into it. I try to convince the bully that the person they dislike I dislike just as much a confer the green light to do harm to the victim. And then when the bully does something objectively wrong then I will ally with the bullied person to punish the bully. It is important to note that I wait until the bully does something that is substantive to point to. It almost always inevitably happens.
If we are going to eliminate bullying then we need to make it so that bullies feel like being a bully threatens their survival. And they need to be convinced that at any time people could oust them for their aggression. Thereby making the world a better place. =)
Sorry I know this was a little off topic! I'm just interested in this subject.