Incorporating HGH, Dealing with Insulin Resistance

I’m 250 6ft. 26 years old
Currently running:
TestE 1300mg a week
Term ace 75mg a day
Eq 1300mg a week

I’m starting hgh at 5 iu per day but I’m diabetic so I’m using insulin already.
Is there a method of using hgh that will not cause such bad insulin resistance? Will metformin help? Does IM or subQ shots make a difference? Appreciate any advice.