Let people know that you have a stutter before you interact with them. There is nothing you can really due to permanently cure your stutter so you are going to have to find ways to live with it. From my personal experience, sensible adults wont laugh at you for having a speech impediment or completely disregard you (most times) And yes you would be farther in life but according to what I just read it sounds like you are farther than a lot of fluent speakers so dont beat yourself up.