I have a presentation in 2 weeks but I always start crying

I have a presentation in 2 weeks but I always start crying So I gotta give a presentation in 2 weeks. Its only 15 minutes so its not that bad, but I just lately realised that the stutter itself is not that bad, just that the smallest comment i hear or even if I dont hear anything I always start sobbing and thats where it all goes downhill. My stutter gets worse and I look dumb. Do you guys have any tips to make the stutter better or to not start crying. Thanks in advance