How to talk fluently w/o mumbling
how do I talk fluently w/o having to think about how I am saying my words (How I'm pronouncing it) I always take note of my talking and noted I struggle talking fluently. As a result I focus on how I talk and if I don't then I sound like I'm mumbling some words. I have started to Read aloud everyday and it seems I talk a lot better when reading compared to when talking to others casually. The main problem is that I mumble when I say some words, therefore I have been quiet out of the fear that people will think odd about how I speak. I hold back my speech, expression, etc.
I could see that I have mumbling and monotone voice problems with my speech and I'm trying to improve it by reading the newspaper aloud by opening my mouth and eunicating and forcing out variety of different tones in my voice. When I record myself read I am happy with the way I read, however when I listen to myself talking to someone it sounds like I can't talk fluent english due to a lot of mumbling.
I sometimes envy people that can easily talk to others w/o having to worry about how they say the words. It's like they can talk nicely unconciously(w/o thinking about how they are saying the words). It just comes out their words so clearly.
How can I help this? Is reading aloud all it takes to improving?