You're over-thinking this. It's a good thing to take this stuff seriously and honestly consider the possible health risks and long term consequences, yes. But don't get too caught up with worrying about the "roid rage" thing. It tends to be over-stated. Everyone reacts a little differently to each compound, but FWIW the only thing that really caused me some noticeable personality agression incrases was Trenbolone. And even with Tren, it tended to be dose related for me.
The best way I could describe it was that the things and people in the work place that I have to deal with which often annoy me, but I usually overlook, Tren gave me a tendency to push back aganst those people and situations instead of being passive about them like I usually am despite being annoyed by them. But it wasn't the type of thing that was completely uncontrolable.
However I definitely would NOT suggest that you use anything heavy duty like Tren, Anadrol, Superdrol, nor Trestolone for the first or even second gear cycle that you engage in. I also never agreed with the very popular theory of doing a Testosterone-only cycle for the first couple times. JMO though. Most will disagree with me on that, and some might agree, but that's my opinion and I'm sticking to it. I would highly suggest that you DO keep your gear cycle relatively short for the first couple years at least, (like 8 week durations ).
I also highly suggest that you start out right by ordering blood tests before gear cylces, one month into them, and a couple months after halting them too. There are online websites which let you pay for blood work with a credit card without having to go to a doctor, (most people here including myself will tell you not to ever tell any doctor about your gear use since it will be entered into your medical records and stay there for years and years which medical insurance companies might gain access to and maybe even deny you for coverage in the future if/when you require some expensive medical procedure performed).
Go to
www.labsmd.com this is very important. I alwys make sure that I pay extra to include the "GGT" test since that's the most accurate and dependable test for determining your liver condition. Also get in the habit of drinking a real lot of water every day whenever you're on a gear cycle since that will help to guard against kidney damage and pain from severe muscle cramping.