TLDR : I felt the same way, but you are doing yourself a disservice by bearing that mindset. Improve yourself and if you have your moments so be it. (24M), I'll say the one thing that helped me become more social ( even though I am quite the opposite) is having a if it happens, it happens mindset. Mine isn't as severe as others but still bothersome at times. If people/girls laugh or treat you like you are weird, then so be it. There are kind and accepting people out here just as much as there are judgemental assholes. Try to focus on your breathing, slowing your speech and relaxing your vocal muscles as you speak. I have found that smiling helps as well, by reducing the anxiety. There are women your age who will accept you for who you are regardless of if you stutter or not. Try to build confidence in yourself and socialize by learning a skill, taking up a hobby or educating yourself on interesting conversational topics. I am implementing these strategies myself. I felt the same way you did at your age, don't be afraid to talk about your feelings with those closest to you, or practice your fluency techniques when alone. That dreadful feeling will go away, I thought I was going to be a virgin forever however, I met this girl and we became intimate. She knows about my stutter but doesn't acknowledge or makes me feel ashamed about it. I used to resonate with this mindset, but you are shooting yourself in the foot. You have a life to live just as much as anyone else, go live it.