These 2 Girls Are Always Cyber Bullying Me on Twitter. What should I Say? What Should I Do?

[Kate-Ann]

These 2 girls are always cyber bullying me on Twitter. Nicki Minaj's hypeman recently celebrated his birthday.I sent a photo to him of me and my students wishing him a happy birthday and he liked it and retweeted it.
These same 2 girls who are always cyber bullying me started sending me even more mean messages saying I don't need to be a teacher, I'm ugly, etc. One of the girls even went on my page and retweeted a photo of me to her followers saying I need to style my hair better.

I came on Twitter for Nicki Minaj and Rihanna.I did not come to be cyber bullied. The other girl is always bringing up questions I asked about Nicki Minaj last year and even took a screen shot of the questions I tweeted to her about Nicki. They were harmless questions like did Nicki play an instrument in high school, etc. She keeps bringing it up and sending pics of the questions I asked last year.
It was a year ago. Why can't she move on?

I blocked them and they are still tweeting mean messages to me and subtweeting about me. Then they are getting their followers involved and I have received mean messages from them too.

What should I say or do if these two mean girls continue tweeting me mean messages, mentioning me, and subtweeting me? I am tired of these 2 same chicks always invading my mentions with petty BS.
I have cussed them out and stood my ground and they still continue to tweet me, mention me,and subtweet me.
I have tried ignoring and these 2 girls and they still tweet me mean messages, subtweet me, spy on my tweets, and mention me in negative ways.

What should I say?What should I do?

[Jessie]

They could be jealous of you. If you dont know them, then get a new account. If you do, ignore all of them.

[Rebecca]

don't let them get to you but if your best way is just to delete your twitter then make a new one and hope it does not continue.

[Rebecca]

Report them for harassment. I don't use twitter, but I do believe they forbid harassment.

If reporting them doesn't work, delete your account and make a new one.