I have to admit, I question your interest in your subject if you aren't curious enough to pursue reading about it on your own. It sounds like what you were really interested in was your college teacher, not psychology as a subject. Having ideas for experiments is what you talk about a lot, but you never seem to do even rudimentary research (like Googling) to find out if that research has already been done and what the results were.
I read the textbook for Psych 101 when I was an undergraduate and "tested out" of it (took a multiple choice test and got credit as if I had taken the whole class.) To do that you have to be a student enrolled in a university that allows placement testing, though--you are correct that there is no test to become a psychologist.
I also have to admit that I feel dubious about the possibility of you becoming a clinical psychologist in the future.
I was the secretary for a clinical psych department for a while, and it was a very competitive program to get into (and this was at a regular state university, not the Ivy League.) Only applicants with perfect grades and impressive extracurricular activities were admitted, and they had a very stressful and demanding schedule of classes and practicums. To get permission to work with human subjects you have to be a very responsible person, and to counsel others you need to be very socially adept.
Wow you made some good points.
Thanks.