I have been seeking the answers to your questions for a couple of years as well. Right or wrong I have come to the conclusion that a great majority of Muslims do not understand the commandments pertaining to the following:
1. "Saum and Salat"
3. and the ritual of animal killing to commemorate the dream of Prophet Abraham and give away the hides to the local mafia.
Maybe it is all about economical control driven by the religious "elites".
Please do not tell me that I need to seek help of a psychiatrist, I am too old to ask these questions or I will burn in hell fire.