It's really impossible for any of us to say whether you are diabetic in the first instant as only your medical Dr's can confirm this. It may well be the case that your diabetes is a secondary result of being prescribed the steroids which are well known to interfere with the control of normal blood glucose levels giving a false impression that you are diabetic. If this is the case then it may be that if you are eventually taken off the steroids, then your diabetes vanishes.
If this is the case then you are technical neither Type 1 or Type 2, but have steroid induced diabetes however you say that you were diagnosed as a Type 2 some time ago but was this before you were prescribed the steroids in which case you would still be classified as a Type 2 now requiring Insulin Medication as a result of taking steroids.
Hope this helps but you will need to discuss this further with your Dr who will know all your previous medical history.