How to get over the fear of public speaking?

I am currently taking an effective speaking class….
I can write and i have no problem writing out my speeches, but my problem is getting up infront of the class and delivering my speech, especially while keeping eye contact. people here who have the same problem, what do you do to keep yourself in one piece up there? what are good techniques to not forget what your going to say next and so on. i need help and advice!