If you are happy committing the money, just do it. I love instructing but I know that my heart and head are not necessarily connected. However, I'm in the fortunate position that the average £800/month I get from instructing isn't needed to fend off the wolves. If you
need a salary, keep the job and get the FI slow time.
SP6 - you missed - "Stick with the SOPs but don't even raise an eyebrow when the CFI does something really stupid"