The part about me reminding you of what I was talking about specifically and saying that, if you still insist on this theory definition, I will have to disagree with you was kind of meant to address the rest of your post? But if you insist that I must go through and criticize it piece by piece, I suppose I shall.
A theory is idea. A method is also an idea.
I'm going to give you a taste of your own medicine on this one: I reject what you're saying. It's not true. Both literally and actually, they are two different things. My source is the dictionary and the encyclopedia.
If you disagree with my rejection, please explain.
Ideas are created by guesses and criticism.
Some of them, I guess. I once had an idea to put Ritz crackers in the VCR slot as a child and I'm pretty sure that was just an on-the-fly decision.
Scientific ideas (aka theories) are ones that make predictions about physical reality, and which can be ruled out by comparing those predictions against physical reality. We guess scientific theories and rule them out with criticism -- explanations of flaws in ideas -- where one type of criticism is an explanation explaining how a theories predictions contradict empirical evidence.
The method explained above is also an idea/theory.
Awaiting the explanation I asked for.