Any tips on getting through period from hell?

Vanessa
I really do not know how to start this. 
But my period is my worst enemy. I am bleeding through it all, i have the worst pain ever and I can not function in my daily life. I am home from school a week a month because I have so much pain and I cry every day. 
And I have so much pain between my legs, in my uterus, it feels like a knife is stabbing me down there. 
Do you guys have any tips on how to function? I have got medication for antidepressants and medication to stop my bleeding because I am becoming anemic because of my period. 
What do you do? I don't know what's wrong with me haha, I have looked at endometriosis but I don't know if it's that. So many doctors have told me I am a "lost case".. do you have any tips for making my period less wanting to kill myself?
Thank you!!