Yeah that really really sucks but unfortunately, I don't think this part of having a stutter ever truly goes away, honestly, because people often choose to remain ignorant until the problem affects them directly. You just have to surround yourself with good, understanding people who won't even bat an eye at your stutter. I always judge the depth of a friendship by whether someone would ever use my stutter to win an argument or turn it against me in any way. If they do, I immediately start laughing because it's actually hilarious how someone can be that cruel, small, and ignorant to even think about doing that to another person. The only thing we can really do is educate others as much as we can and be open about our struggles, because I don't think anyone truly understands until they're told. I've met some amazing friends who have openly asked me about my stutter and how it affects me. They've even told me that I've helped them become more empathetic because you never really know what someone else is going through.