Help/Support Advise Literature for Teapot (IDA PRO)

[Archipunchline 0]

I would like to ask those who are already fish in this troubled water to share literature (various tutorials, articles, links to lessons in iosgods) that will help me a person who does not understand a single gram in things like BL, STR, LDR, SVC,  SUB, etc., to understand how it all works, what branches off where, so that I can hack what I want myself.  

I look at it all as a dark forest.  I do not need complete disassembly tutorials, I need a basis that will allow me not to get lost in the hacking process.  All I have now is a wild desire to learn to understand this code, I hope this will be enough.  But unfortunately, I cannot find a sensible guide precisely on how to detect a vulnerability, and how to understand what it is ...