All the stuff you are saying sounds like a good plan! A very good way to approach it all and to avoid the rollercoaster. 
But I wanted to perhaps put some fears to rest about your brain, because you said that your brain hates low BG. I can understand the feeling.
But your brain is okay! Your brain keeps getting glucose long after everything else is shut off.
The body is cleverly designed. The brain uses the GLUT3 glucose transport. Since GLUT3 is a high-affinity glucose transporter, only a small amount of glucose is needed to saturate it.
Even though you feel it, and you lose some cognitive function, the brain can keep getting glucose until you get to the danger point of below 40. That’s when the glucose is no longer able to get into the brain at the normal rate.
Here is a page from Biochemistry, 5th Edition (Section 30.2):
Keep doing what you are doing! All of this is simply to say - avoid the super-low BG’s, and you are okay. 