1. Don't ever give a damn about other people laughing at you for any reason. Remember, you weren't given an option to choose whether to stutter or not. So, don't let anyone let you down on this matter. 2.I see you have a presentation. As you already are probably aware of what you are going to speak, the most important thing is to practice a lot. Then, you would know where exactly you are facing the problem. Possibly, you can use another formation of sentence or use some technique to improve the situation. 3.I personally face the same situation with my name. I don't want to proclaim that I completely overcame the situation. But, you could try the methods mentioned in the other comments. I personally try taking deep breath in/breath out when I feel I am about to stutter or use some fillers which eases your speech (as someone mentioned, my name is____). I have been bullied during my educational life about my stuttering. I did feel very bad about it. At every phase, I received support from my teachers/lecturers about it. Now I am in my professional phase of life, I still be the one who is made fun of about the way of speaking. One thing I learned is, never give a damn about what you cannot control. Don't get low. Practice a lot, you will find a way to improve your condition. Best regards.