I'm 27 and also have a severe stutter. I used to be where OP is, now I'm slowly getting closer to where you are. OP, what he's telling you is true. You just have to embrace it. When I was your age, I went through a phase where I didn't talk almost at all, through fear of having a block. It caused problems in relationships, friendships, I let people run over me because I wouldn't say anything to defend myself. Then one day I got tired of it. I was tired of not being able to communicate how I was feeling. I got tired of excluding myself from conversations that really intrigued me. I got tired of missing out on opportunities because I wouldn't communicate my interest in them. I just got tired. I came to the realization that anyone who truly wanted to know what was on my mind was gonna wait however long it took to hear it. The ones who won't don't deserve the pleasure of communicating with me. The better you get at owning it, the less severe it will be. Confidence will improve your fluency, but you have to be able to stutter confidently to get to that point. It's hard to do, but once you do, it's a great feeling.