Would you kindly?

I really can't figure this out, I'm not sure if people don't understand what I'm trying to tell the because I can't communicate well, or I can speak just fine and people are just incapable of responding properly to what I say. 

Like, I know how to speak English, and I know I'm pretty bad at it, but I'm not THAT bad. I'm starting to think people are just completely oblivious and don't listen to others. 

Allow me to explain. . . 

Say for example, I'm asking someone to perform a simple task while I am busy doing other things. Say for example, this person has been 'relaxing' all day on their media of choice. Lets also say there is a standard and effective way of doing things that is well known and is expected. Even if the person does not know the standard procedure and has to been given instruction, detailed instruction even, they can still compete the task. 

This is an all too common situation I find myself in. Now, I am really reasonable person, and I understand a lot about certain things. Say, if the person in question forgot the 'standard procedure,' I am happy to explain things a second or third time. But what even they still don't understand?

I'm going to try and keep this about language problems rather than going on a tangent and ranting about how I have to deal with some of the most incompetent people in the world. No promises though. 

You've probably noticed by now that I 'speak' in a very different manner than most do. Part of that comes from having studied a few different languages, different styles of speak, and probably the biggest factor, head injury. I'm not what you'd consider 'graceful' and 'dainty.' I'm a rough and tough kind of person, and I'm used to getting tossed/thrown/smacked around, so a few injuries here and there aren't gonna bother me. (If you recall, I got a door slammed into my head a week ago). Throughout my life, I've gotten my fair share of head injuries, ranging from a concussion two years ago (ill tell that story in a later post), large amounts of wood falling on my head (from helping my dad build a porch covering while we lived in California), getting pushed out of a tree house and nearly slicing my scalp on a fence, slipping and falling down some stairs, and plenty of other various hits to the head. So, I is brain damage. Gyuuuuuurrrrrrr. At some point during these last few years, I realized I can't communicate as well as I used too. I also mumble, stutter, speak softly, and sometimes I don't even say coherent words (it happens). That's why if people can't understand me I am more than happy to repeat what I say.

However, there is only so much I can do on my end. After the third or fourth time retelling someone something, I'm going tostada getting annoyed. I am human after all. But when people still cannot comprehend the things I am saying, I'm more than likely to just give up. Especially when it comes to some kind of task, which I'll just take over doing. One of my favorite self quotes is "If you want so,etching done at all, you've got to do it yourself," which seems to be the main theme of my household.

It's things like this that make me question where the 'problem' really lies. 

Am I just so terrible at communicating that people think I'm and alien?

Or do people just really suck at listening?

I know it's a mixture of both, but I'm really starting to doubt that the fault lies in my own abilities.

The worst part is, I've had the most success in communicating when I don't speak at all. . .