Are there any other adults in your life that know about this situation? If you feel comfortable doing so, set up a meeting with this teacher along with another adult who you know is in your corner (can be a parent/guardian, coach, family friend) and have them remind her of your accommodations. Stuttering is considered a disability under the ADA and you legally can't be discriminated for it. More detailed info on that here-[https://www.stutteringtreatment.org/blog/the-americans-with-disabilities-act-what-it-means-to-people-who-stutter](https://www.stutteringtreatment.org/blog/the-americans-with-disabilities-act-what-it-means-to-people-who-stutter) I understand you no longer have an IEP due to "graduating" speech therapy. I'm so sorry that happened, whoever made that decision for you was a complete dumbass. If there is any type of special ed/disability liaison that can help reinstate your IEP, set up a meeting with them as well (again, along with an adult so you have back up). It may seem pointless since you're nearly done with high school, but having any type legal document that will help you get necessary accommodations will be helpful to you for the rest of your life, especially if you choose to go onto college. If all else fails, go to the principal. If there's any type of written or digital proof that she's marking you down due to your stuttering, show it to them. This isn't being a Karen, this is making sure your grade point average isn't permanently fucked up by a teacher you're never gonna see again in a couple of years (seriously I can't remember half the teachers I had in high school). In the very least you can try to make sure you're not in her class next year (Apparently you've had her for three years? I'm so so sorry!) Please remember this isn't forever, and there is a life far grander for you outside of high school. You describe yourself as being overly confident, which is awesome! You're already leagues ahead of most teens, stuttering or not. Good luck moving forward, and remember you have a lot of supporters on your side, even when it doesn't feel like it. You've got this!!!