Hi Roland, you sound as though you are in a bit of a funk, feeling the lack of progress, we all get that from time to but it’ll pass…until the next one, and the next. Progress tends to come in fits and starts. Just stay the course and never give up.
I started looking at those signs of despondency as my que to go do something different for the day totally non stroke related. We all need a pick me up at times so give yourself a day or two off periodically.
Never mind the arm injuries, that’s par for the course with blood thinners, we tend to bruise easily, with me it tends to be on the legs.
Muscle atrophy also comes with the territory of a stroke, it’s inevitable from the lack of use. Have you never seen an arm or leg after break, when it first comes out of the cast, that’s when it looks its worst, all skin a bone and sooo skinny looking 
That’s the way it was after my broken ankle and that’s the way it was with my body. Think I lost nearly 2 stone in the first year. By the end of that first year I looked like a saggy deflated balloon, it was not a look I can tell you 
And then I got my driving licence back and the covid lockdowns were lifted that it, I was off down to the gym every other day to build it all back up again. And now I’ve got a nice pair of walnuts sitting on biceps thank you very much 
Here’s my time line for arm/leg functionality and muscle build up for you.
Had my TIA 2yrs 3mths ago, left brain, right side paralysis, no speech, aphasia.
It took me a year to walk again in a reasonably straight line unaided without the weaving or drifting off to the right. That was gradually built up to 4 miles a day over that time. Can easily walk 6 miles in 2 hours with a couple minutes rest along the way.
Within that same time frame my arm was also back to full functionality once again and hanging naturally at my side. Ok, it’s not quite 100%, there’s still some minor things to ironed out with the finer dexterity and control of the fingers and such. But nothing that really holds me back.
My arm tended to lie across my chest even when upright so I’d give it things to carry around or just hold onto such as grip strengtheners, stress balls, therapy putty. cups of tea
It always had something to do anyway, it wasn’t completely neglected and not aloud to be lazy:wink:
Gradually I built that up to carrying heavier weights and forcing it to do more things like the hoovering, washing up and so on thus giving my left hand some much needed time off 
Sometimes it’s not about what you do but how you do it to trick your mind back into normal bodily function again. Certainly, while you are still in early recovery, never see them, never think of them as major handicaps, don’t fall into that mind set (handicap and disability are for official use only
)