Rage can be a symptom of the hypomania state. So can irritability. One of the symptoms I had during hypomania is irresponsible spending. That one is actually fairly common. I like the statement you made that says "mood fluctuations are tiring". They are!!
I'm a 61 yo male that has suffered depression off and on my entire life. Mostly off and it was easily controlled by medication. I was diagnosed as being type II bipolar a year ago in January, and no medication seemed to work. I went into a downhill slide into severe depression. I had many of the common symptoms of BP II severe depression. I couldn't read books or magazines. (This one is fairly common). I was having occasional cognitive difficulties. (This one can become permanent). I was having significant memory loss. I was having significant sleep issues, often getting only 2 to 4 hours of sleep every night. That was with Ambien or any of the other sleep meds we tried.
Then during the last weekend of December, one week before scheduled ECT treatments, I came out of the depression. I was totally out of it. My psychiatrist has no idea why. Maybe the Lamictal kicked in. Maybe there was some sort of reaction between the Lamictal and Ritalin.
This stuff is horrible. Don't be afraid to talk to your doctor if you feel meds aren't working or something isn't going right. I always take in a list when I see my psychiatrist so I don't forget to talk about something.
There is a lot of information on the internet about BP. I like this article because it talks about how to not neglect other aspects of your healthcare and how to prevent premature death associated with bipolar.
https://www.sciencedaily.com/release...0202103023.htm