That explains everything (no disrespect intended at all) 
Engineers do wonderful things with their minds to help the world enjoy complex and reliable systems and constructions, and you have my respect and gratitude for applying yourself that way.
However, engineering and mathematics don’t do much to help us guide our internal life and our interpersonal relations. This is where philosophy (with our without the spice of “religion”) excels.
There is no one truth, no perfect measurement, because we ourselves are the only instrument. If you can get past that, then try to see the method that Buddha and Socrates (via Plato) describe. It’s a scientific method of the self - start by calibrating your instrumentation.
I’m no expert, but I know enough to know that they were excellent.
