Japanese Honorifics are not meant to be self-applied (as far as I know)
To call oneself <name>-san, or <name>-sensei is regarded as quite pompous.
Respect is earned, not self given.
This is 100% correct. Confusing Sensei with Doctor or Professor comes from a misunderstanding of Japanese culture. The 2 western terms are given from a governing body down. Sensei is given from someone lower to someone above.