Classics question

Hi,

I just wanted to ask on what i should do. I am doing classics a level ocr , howver i am a resit student and not affiliated with any school or college, my old school said they cant help coz im no longer a student. JUst wanted to ask how i should go about marking my essays as i have always had it done by a classics teacher, idk is there a platform, coz the markcheme is quote vague dont really know what is good and what is really good.