Started an internship in late April. Ending tomorrow, thank God. Every day has been hell. I'm just not cut out to work in such close proximity to people. You see, I've had this issue for as long as I can remember: **I cannot effectively communicate with anyone**. No matter how loud I talk, people either do not hear me at all, ignore me, or, most frustratingly, **mishear what I say/assume they knew what I was going to say**. This makes talking to people, especially in a workplace, virtually impossible. I'll say the same thing over and over and get either no response or a response that makes no sense because they didn't actually hear/listen to what I said. It's been like this for so long, but trying to work in an office setting just makes it all the more noticeable. I have no idea what's wrong with me; been tested for autism multiple times, all they know is I have "crippling social anxiety". The worse thing is when people mishear what I say as something rude or malicious, which is unfortunately common. Once got in trouble in elementary school after I told one of my many bullies to "just stop talking" and the teacher claimed I said "shut the fuck up" when I didn't even know the word "fuck" at the time. Imagine things like that happening every single day to everyone you talked to. You're never sure if anyone heard or understood you. You'd have crippling social anxiety too! And it's not just when speaking, either; people routinely misunderstand the things I write and type too, though typing is probably my most reliable form of communication. 

Sometimes I feel like people aren't even listening, just assuming the worst of me (like in the above example). Is there an auditory-equivalent to a Freudian slip? Do people just hear what they want to hear? If so, then people must think I'm a really awful person, because I'm always getting accused of saying horrible things.  
This might seem minor. Last time I tried to explain this to someone, they thought I was just overreacting. But, if they were in my shoes, they would understand that not being able to make yourself understood to anyone is actually hell. 

After suffering through being misheard/misunderstood/assumed to be a complete asshole by everyone I meet, I have developed a chronic phobia of repeating myself. This has gotten me in trouble at my current internship; even though I tried to explain it to my ~~idiot NPC~~ boss, he keeps saying things like "I just want to know what you said" and "I only asked you to repeat yourself". Me trying to explain this fear has led to people saying things like "well, that's a little rude, you know" and "well I don't like repeating myself either but you have to" but that's not the issue! When I have to repeat myself, I flinch and claw at my eyes and have to hold back tears. When I first tried to explain it to my boss, he laughed at me (just like he laughs at everything else I say). When people say what I do one of the following:  


* Cry
* Say "never mind, sorry"
* Say something slightly different from what I said
* Run away

I think part of it is the fear of getting stuck in an infinite loop (especially since I know people who act like idiotic corporate machines instead of people). I don't know why I'm like this or how to make it stop. All I know is I cannot communicate on a basic level. I just don't know what to do, other than kill myself.