I have a presentation tomorrow and am very nervous. Does anyone have any tips?

I have a presentation tomorrow and am very nervous. Does anyone have any tips? I've been stuttering ever since I can remember. More recently I've developed some ticks and twitches to go along with it. The twitches and ticks seem to mostly come from when I speak. I've presented all throughout high school and I don't remember being this nervous. Just looking for some advice.