How do you think speech occurs? Are you conciously focused on trying to move your mouth and tounge when you talk to articulate more? Because I have found out like many others that speech is a natural innate ability, for lack of a better word. If you try to conciously move your tounge or mouth etc instead of allowing your mouth to move on its own naturally then you may be interfering with a natural function when you don't need to. Like walking.. You never conciously think about walking but sometimes you bring your concious attention to how you are walking maybe because you notice a girl has been walking behind you for a long time and you think to yourself "I hope I don't look weird" then you start to focus on How you are walking and you then implement concious control and try to walk "naturally" but trying to walk naturally is not natural cuz when you do something naturally there is no trying it just happens! And you notice what happens as a consequence of you trying to walk naturally is that you start to make silly walking mistakes like putting the wrong foot forward or your speed not consistent etc. So one huge thing I discovered is anything that causes you to not control yoir speech but let your natural ability do the speaking will result in fluent speech. (Of course screw ups still happen). So what would be something that would contribute to you not trying to implement any control? Well for example IF you one day realized you didn't care about other people's opinions or your minor stutter so you stopped trying to control your speech conciously so what happens is your natural ability takes over the speaking job and u find out all of a sudden you have fluent speech.