Like I said it doesn't have to be in English. Do it in German else? However I note that you are good at expressing yourself on the post. Consider it. How is it any different? Don't tell me someone else is writing it for you"

You have enough of a vocabulary to describe. There are no perfect words so you need to start talking.
It doesn't come easy for anyone because we are retraining the mind to not come up with just one word to decribe the picture like it normally does.
For example a stick, to describe fully, it can be 20cm long wriggly or wobbly with 7 little elbows and a little tuff of ne green leaves on the fourth elbow from the top. It's a shade of dark grey smooth looking bark but feels a bit like super-fine sandpaper. The top is about 3mm thick and the bottom about 1cm. The small leaves are a shade of green like a clover and there is a little red band at the knob. Even though the stick is wriggly it's still relatively straight.
That was an image stream I just did for you while writing.
I don't know what your expectations are but whining about it doesn't help. It's like learning to ride a bike, for most of us it took 50 goes till we were able to get enough momentum and actually ride the bike without dragging our shoes. As adults we become quitters at the slightest sign of it being difficult. We forget it takes about 50 tries till we become a player at it. Isn't it odd, we try try again with video games and never stop to think that learning something like image streaming is like moving up the levels of a video game. Just because we are not interacting with a computer does it mean our learning curve is going to be faster?
Go easy on yourself Prana. The answer is keep going. If necessary practice with a tape-recorder describe an object, describe a pencil that you have in detail draw me a picture with words. Then close your eyes and continue to do that in your emage stream.
Alex