not being able to answer questions in class

not being able to answer questions in class (16 M in high school) so i’ve been stuttering pretty much as long as i can remember and it’s went from severe to pretty mild now. i don’t really deal with repetitions anymore it’s more blocking that i deal with. anyway, i’m really tired of being asked a question in class and i literally can’t answer it so i either just pause for like 5 seconds and hope everyone thinks i’m thinking (and then the words finally come out) or i give up and say “i don’t know”. i hate this because more often than not i actually do know the answer and i can give a good one but my brain just wont let me and it’s the most aggravating thing in the world. it makes me feel like my teacher thinks i’m stupid because i can’t answer his questions. but luckily he’s mad chill and he doesn’t call me out or anything he either knows i stutter and doesn’t talk about it or just doesn’t know bc he doesn’t think about it that much. also really hate whenever a teacher asks me to read and i have blocks at certain words and it just sounds like i can’t read or i don’t know how to pronounce the words. when i’m actually in high school reading these easy ass words of course i can pronounce them lol been on my mind a lot i just had to get it out somewhere bc i hate talking to my friends about my stuttering even tho they’re really supportive and understanding but i’m still really embarassed about it and ashamed about it which ik i shouldnt be but i can’t help it. thanks to anyone for listening