How do you manage your stutter while giving a presentation?

How do you manage your stutter while giving a presentation? Hi everyone. I have had a stutter since childhood and still struggle with it from time to time. I reached a point where it is mostly managable in my day to day life. I barely stutter when I´m with my family, friends or even people I don´t know so well like work colleagues or customers. However there are two kinds of situations that severely trigger my stutter. The first is speaking english (I´m not a native speaker), the second is giving a speech/presentation. As soon as I have to do one of those two things, my stutter gets so severe that I can´t get out a single sentence without having multiple blockages. Is there anyone here who has had something similar happen to them? I would be very grateful for advice on how to deal with that, especially because in a few weeks, I will give a presentation, in english, in a professional environment. Thanks in advance for any advide.