I feel almost the same things and have the same background. Stopped dreaming or pursue something in life because of my stutter and depression. I can't end my life right now because my family wouldn't handle it, so I don't want to put them through this pain. I kinda learned to live with it, I just don't care what people think or say about my stutter anymore. But at the same time, it's a limitation because I can't say what I really wanted to say. My suggestion for you is to try speech therapy, at least try for a few months. You're still very young and not stupid as you said. I'm pretty sure you can achieve a lot in life.