Hi I too was diagnosed steroid induced diabetic,like you I have mobility problems and multi other health issues. I was unable to go on tablets as other conditions prevent it, but straight onto insulin....basal/bolus......
Diabetes was a long way down my list too,but since being on this forum I have gained a lot of information and help.....
I have huge weight gain from steroids and other meds, but By listening to the advise on here I have lowered carbs like crazy,it has not unfortunately lowered my weight BUT is has lowered my blood glucose levels......from average of 17-22+ to now down to under 10's ,it's a work in progress.....
I don't know your mobility limitations , but due to mine I've started pulmonary physio....all from my wheelchair.....
There is hope,welcome to the forum.....good luck....
P.s. I was told by endocrinologist that steroid induced can bring on pre disposed diabetes,I was going to get it anyway....type 2 ....
Here's hoping you too get help....