Well I'm not a few years old vet, but I definitely felt nothing but annoyance, anger, and full blown rage starting. I did have anger issues prior to starting T, so this was expecting and the reason why my doctor started me off super low.
The gym has become my friend and I look like I'm beginning to look like a gym rat. I like it though and it's helped with my anger tremendously. I'm calmer, more rational, less angry. My anger usually comes hard and fast and makes me want to do nothing but punch, kick, and otherwise fight everyone for petty reasons, even looking at me wrong made me want to tackle and fight said person. HUGE anger issues. Now I'm calmer. Still more agitated than pre-t me, but way better than when I started. Not wanting to fight at all times, not cussing as much, less pissy. Way calmer and the gym was my safe place. I recommend it to all my friends. Like it's helped me, so I like to suggest it at least. Give it a try, might even help you.
And to clarify, I am now way calmer than before. Also due to working with kids all day. Amazing what that can do to a mans patience, I'm more patient than some of the teachers even!