Welcome to the community Nick!
Unfortunately, there aren't any answers to your questions that are set in stone!
However, the Beast does morph over time......mine were just a few weeks with mostly late evening hits the first couple of cycles but by 1998 they had progressed to 20 to 26 weeks weeks with an 18 to 19 month remission period, and the vast majority of my hits were nocturnal.
The good news is that you have a bonafide dx just months after your clusters prevented......7 years from onset was the average when I was dx'd in 91..mine began in 84, so I fit exactly!
And, you've found us and believe me, collectively, the active members here know more about clusters and their treatment than most docs!
Many excellent treatments available to you in the way of oxygen to treat individual hits in cycle, anti inflammatory vitamin D3 regimen that you can take all the time to lessen frequency and severity, and for some it even seems to prevent cycles......and other remedies you can read about in the clusterbusters files and busting stories section of the forum!
Although it can vary, many of the clusterheads I've known for a long time have been dealing with the Beast for 30+ years...36 personally and I'm 73....but, like I say, you've got a leg up on us old farts with what's available to manage clusters today!!
Read and ask questions! Be well!
Dallas Denny