Like anything, it's practising doing it. Incidentally, this is one place using a chat bot might help you. These things are pretty good at carrying a conversation, and if you're not comfortable talking to a person, it could be a good way to practice.

OP, I have the same problem and I recently made a ton of progress! Two things helped. First, I started humming almost all the time. I can't carry a tune, and it feels pretty silly. I was very self conscious about it at first, but it has really helped so much with producing sounds. Before all the humming, I never really knew what my voice would sound/feel like before I started talking. But now, it's like I always have that preview thanks to the humming.

The second thing that really helped is something I'm really lucky for. I live with a very supportive friend, and I told them that I would be making more noise and trying to talk to them more in general.

Oh, also apparently acid reflux was an issue too.

I still am not very good at knowing what to say, but at least producing the sounds has gotten so much easier

Just remember: practice is good, as long as you're not straining/hurting yoyr voice!

One really neat trick is to slow down and even pause words. This really helps me get my point across.

You're dealing with both impediments and social issues here. This would be difficult for anyone. I highly suggest professional help, but if it's not available or you are unwilling, the next best thing would be to understand you're going to need to fail a lot with intentions of getting better, and it may never happen. I'm rooting for you.

Edit: To clarify, speech therapy and general therapy are what you will benefit from.

I talk like xQc

Just looked up this guy and this seems obvious, Twitch.tv is the inverse of literacy and coherence. Stop fucking gaming and watching streams.

Practice by reading out loud slowly and enunciating like you want a child to understand you. Do the same with others' speeches, as they were written to be said out loud. If they are recorded in an accent that is in the neighborhood of your goal, even better - you can practice talking exactly like a recording.

Even though this isn't off-the-cuff speaking, you will likely adopt verbal patterns that let your words flow more freely.

You can also join clubs that are dedicated to speaking to other people. If all else fails, something like toastmasters, though that's specifically about public speaking.

If this doesn't go well, that's also okay. You might want to look into a speech therapist if practice doesn't help.

I got a job as a door to door salesman for a year and by the end of it I felt like talking in a way that was both fluid and engaging was my superpower. This is after having such crippling social anxiety that I would often run home and hide. It may be an impractical suggestion, but I would advise you find a structured way to practice where the goal isn't just talking for its own sake.

I as a teen worked in a retail computer store Having to constantly interact with people really give you a sense of being able to communicate better. That or any job where you have to teach someone something.

Speech pathology for the stutter and the slip. You can find some free help online but be careful, trying to fix speech issues on your own can make things worse in some cases. If you can, seek professional input.

I talk like xQc irl

🤣 Sorry not laughing at you, I'm laughing with you. I kinda felt that.

Remember that in real life, conversations isn't like in movies. Dialogue isn't so perfect with flowery proses. Real conversations often have incomplete sentences, a lot of "um..." filler words. And there often like frequent pauses when my brain just has to process thoughts before I can say it. Life is like that, is normal.

What made me less anxious and just go "IDGAF" is just I realized that I am a mortal being and I will eventually die, I kinda had an existential crisis for a while, then I was just like: if everyone just dies, all embarassing moments just gets forgotten

Like you can piss yourself or shit your pants, look foolish in a live audience of millions of people, say stupid things... whatever. Doesn't matter, everything is temporary. Being a bit nihilistic just allow you to be yourself. Nothing matter anyways, do what you feel like (except harming others, don't harm other living being please).

I mean not to get political, but just look at politicians say stupid things all the time.

The president of the US fell down a bunch of staird, people laughed, the internet memed it a bit, everyone kinda just went on.

And most of us doesn't have the whole world watching is. If I fell down a bunch of stairs, most people that saw it would just forget very soon. Samething with speech, as long as you don't say anything thats bigoted, nobody care about speech mistakes.

TLDR: Life is short, do whatever you want as long as it doesn't harm other living beings. Make mistakes all you want, doesn't matter in the grand scheme of things.

Have you tried hypnosis?