Hi! Do you have an IEP or 504 plan? I recently learned that "A child who is speech impaired may be allowed to complete a written report instead of presenting orally in front of the class." (source: https://easchools.org/what-are-the-different-types-of-iep/). I didn't know about this then, and I strongly encourage you to talk to your teacher about any accommodations. There has to be a solution out there for you. It's okay if you can't do it. You are still smart. You don't owe them anything, so don't be afraid to stand up for yourself :)