Honestly, the biggest part wasn't on me, but was rather making sure that the groups I was a part of knew what was going on and how to handle it (i.e., they didn't have to do anything or feel bad, it just be like that sometimes.) Focusing too heavily on techniques can sometimes lead to feeling hopeless. #1 priority is creating a space for yourself where you know people understand you, and are not afraid. This includes your professors. Talk with them about it so that they know, and can help you if you need it (extra speaking time for presentations, etc.) This, above all else, will make you far more comfortable with it than all the practice in the world. However, as for actually handling instances of stuttering, I found that proper breathing and the way you phrase things is key. I learned a technique back when I was in therapy that was, essentially, learning to talk in almost a sing-song way, where everything starts to blend together (obviously with appropriate pausing and such, too!) It's noticeable at first, but as you practice it becomes just like normal talking. It has helped immensely for me, maybe try it and see if it works for you?