GMC worst post surgery experience, icu 100% but post surgery ward I'd never Wana be here again

Iv been helped well into my surgery.. After surgery was sent home.. Came bk a day later due to infection.. Everything was good until I had to leave the icu ward and put into the surgery recovery ward. I get to the ward I am a diabetic patient the lady decides to giv me 2 units for the evening which is crazy, I wake up with an extreme high blood sugar level over 23.. After which I was tested at 5am, I only got meds insulin an hour and a half later of 6units, and I also had to eat.. I keep arguing with staff that this insulin is too little and they say no you must take that.. After this a lady comes and gives me 16units which I never in my life took max 14units as that big amount makes me unable to focus Nd shake and unable to function if my sugar level is lower than 14 to take 14units is a huge amount.. For the last few days I hav been arguing after Dr gafoors assistant told them infront of me that I can't remind them to giv me insulin.. The very next day another nurse comes and tels me I must take 6units again.. After I was told by the doc that I need to get 12units standard.. This is rediculous, I must argue to sort out my own health what about those new diabetic patients.. Iv been diabetic for last 32years.. The other night 3am a nurse comes to me stiek me 8times in my arm saying she can't find a vein, very unprofessional and a painful experience.. The insulin injection needle used was a long thick needle which I probably used 15years ago.. The other nurse puts the open injection needle on the table while I'm eating saying here's my insulin 16units and puts the open needle on the table while I'm eating.. The next 3days I get my insulin pen thank God but the insulin pens inside cap has no cover over it(germs get in2 the things.. Worst experience of my life in the post surgical ward, icu ward is 100% no issues.. Surgical ward they dnt tel the ppl u can use the showers, shower smell like the guys abscess that burst next to me when I went in ther.. I would not of layed this complaint bt after argument of Givin my insulin I hav to tel ppl this is not acceptable.. Disappointed there are good doctors and surgeons but the nurses don't record in the files what needs to be done.. If I did not tel them I would of been way more sick.. Dr Saloojee helped me enormously to his best ability as well as Dr gafoors but the staff working in post surgery ward the hole ward needs sum kind of proper training