I have not read every post on this thread so someone may have already mentioned the Kinsey Scale. If so then please ignore what i write here.
Inthe late 1940s Alfred Kinsey, Wardell Pomeroy, and Clyde Martin developed a simple set of question test to better ascertain your sexual orientation. It is known as the Kinsey scale test.
Its had considerable criticism, mostly about it being to basic, i.e. breaking a complex subject into a very simple test, or the limited number of test subjects (around 8000)...
... But it works and in 60 and tens of thousands of tests the initial findings don't deviate much from the initial results.
I.e just over 14% of people are completely heterosexual and around the same number are completely homosexual. The remainder are variously between the 2 extremes
View attachment 36096
You can take an "unofficial" test here
Kinsey Scale Test