I tried Adderall last month. Great initial reaction- focused, sociable, more confident. By the third week, I was having suicidal thoughts. I realized I didn't have to have a diagnosis of ADD to explain that I was, more accurately, a socially anxious INFJ with Type B tendencies (and a Sagittarius lol). My low motivation, low energy and poor focus was reassigned to common signs of depression more so than a cognitive disorder or executive impairment. Basically, I'm more functional when I'm not fixated on something negative and I'm starting to reconsider ADD as a symptom of my problems rather than as the problem itself.
Hmm, I don't really know (or care much, no offense) about the personality types, Enneagram, that kind of stuff.
The way you can figure out if you have *genuine* ADD (3 types: inattentive, hyperactive, combined) is look back to your childhood. Did you have trouble getting things done in school.. much slower than the rest.. terrible daydreamer.. impulsive and fidgety? I don't know about your case, but I know that it's 100% true for me. I was not depressed as a youth, and I've always had these symptoms. I don't remember a day when I was working or operating at a "normal" pace.. I was just off in the clouds. It doesn't destroy you in childhood, though.. so I was undiscovered until adulthood, when it quite literally obliterates you. What was once, say, a "5 year developmental lag" becomes a 10-15 year lag. This is why it's no good to have parents, like I did, who wanted to believe that I was "just like everyone else," etc.
You mention Adderall didn't work for you (except in the beginning.) It doesn't for me either, because of my extreme sensitivity to stimulants. But being sensitive to stimulants.. which means you get the effects of a high dose, at a low dose (euphoria, mania, paranoia, compulsive depressive thoughts).. doesn't mean you don't have ADD. I've done a lot of reading that confirms this.
I've been trying recently to find a "mild" ADD med that will work for me.. it's really complicated though, because of my sensitivity and other health issues. But it's at the point, now, where if I don't find some artificial stimulus to get me going.. well, I'll just be a lost cause, indefinitely.