As you get older, depending on the path you take, you force yourself into more situations and experiences. My stutter usually correlates with my level of comfort around people. So, obviously, whenever talking to strangers it used to be exponentially worse. But also being 25 and living alone for the past 7 years or so forced me in situations to talk to strangers more frequently. Buying your own groceries, talking to mechanics, service providers, running your own errands, forces you into interacting with strangers more frequently than you would if you were younger and living with your parents. As that happens, your comfort around strangers increases, which has helped with my stutter. You can do things in your life to manage and treat your stutter, without aiming to cure it. Don't hide from the world because of it, because that's how you can guarantee you will stutter until you die and stutter while seeing very limited improvement in it throughout your life that you will later live to regret, as you said when you have a wife and kids. Another thing for me has been finding alternate forms of expression. Always felt like there's been a weight on my chest from all the things I wanted to say but couldn't, or didn't have the courage to at the time to express myself through words. I started playing piano again the last few years (used to for a few years as a kid) and its been one of the best things for me. Also I don't stutter when I sing so been leveraging that too. But there's many ways to do so, even just writing is a huge help. Art, poetry, gym and contact sports helps express some of that built up frustration. All this helps release some of that built up tension and anxiety in you, which you may later see reflected in your stutter. Another thing, obviously if willing, is to try out public speaking classes. Much cheaper than speech therapy and puts you in those uncomfortable situations where almost everybody there is on the same boat as you (not stuttering, but a lot have severe anxiety with public speaking). I've spectated once before and saw how it could potentially be a benefit, but never followed through but that's just because it just drains too much energy from me at the moment. But if you're capable, i'd recommend it.