Some profound comments here. So how do you know whether you're TS or 'just' CD? I think you always know if only on the subconscious level. It's only when you finally accept yourself that you can look back with the benefit of hindsight and see how much you deceived yourself yet strangely all the while knowing it deep down. I constantly put obstacles in my path. I still do.
There was also always a list of reasons why I couldn't be TS. I have'male' interests and I didn't fit the media inspired (pre internet) 'typical' TS attributes.
I could go on but others have put it better.
You could take a good look at yourself. It seems to me sometimes that a man's most important relationship is with his genitals. If you woke up in the morning and found them gone. What would you think? The worst thing ever or what a relief? Or something in between?
Not a foolproof method but an indicator. In my case I don't hate the thing. I've had fun with it. But it just gets in the way now.