Anyone have experience using Walmart insulin?

It doesn’t seem to be working for me. This morning i woke up at 5AM and the first thing I did was inject myself with 20 units of novolin along with my normal dose of lantus.

I took a shower, ironed my clothes, and then watched some tv while I waited for my blood sugar to drop. It took 3 hours for my blood sugar to drop from 130 mg/dl to 80 mg/dl. I was sure if I ate my normal breakfast I would be high all day so I just ate an orange and went to work.

Around noon I checked my blood sugar and it was 210 mg/dl. My carb ratio on novolog is 1:8.