Glossophobia[fear of public speaking]

Hello fellow mangago readers and sorry to bug you with this question but does anyone have any tips to overcome my fear of public speaking? A few days ago, i had to do a speech in front of the class for a test and i totally bombed it. I was fine in the beginning but then my hands started trembling like crazy. I blacked out and missed some sentences. Then, in an attempt to rectify it, i made even more mistakes and said things that did not make sense. My pupils started to move in all directions and i tried really hard to focus on my flashcards. I finally managed to do it but after that i never lifted my head to make eye contact again. At one point, my voice just stopped and i had to take a few breaths to continue. I feel like crying so bad. I can't even ask my friends or family because they never have such problems and can become friends with literal strangers. I have already searched it on google multiple times before but i really want to learn from actual people. So, i appreciate any help i could get.