I've started college this semester as well and have already disclosed to all my classes and professors that im a person who stutters and its taken such a huge weight off my shoulders. But in regards to what makes your stuttering better id try focusing on what you struggle with the most and hone in on that. Also self disclosing is a good tool to use especially in a school/group setting. A good example i have is introducing myself and saying my name which is something I've always struggled with. Good luck and let us know how it goes 😊