Busting is a topic I don't know enough about, as I am trying to learn that myself.
However, I have a few tricks I have learned:
OXYGEN is your best friend. There is no actual difference between welding oxygen and medical oxygen (only the cleanliness of the tank). Oxygen is your first and best line of defense. I have found that oxygen will abort an attack almost as fast as an imitrex injection without any of the side effects. You need, at a minimum, a flow rate of15LPM through a non-rebreather mask for 15min.
When you go to your doctor, make sure s/he specifies the flow rate and non-rebreather mask (the one with the bag on it).
Much more about oxygen can be found here:
https://ashleyhattle.com/how-to-get-and-use-oxygen-for-clusterheadaches/ (This is a link to the website of a Clusterbusters board member who literally wrote the book on Cluster headaches) It wouldn't hurt to get the book either, I found it informative and encouraging.
Also, there is a lot of information on this board about oxygen. Everyone does it a little differently, but most people have great success with it. A key point is that if it does not work for you at 15 LPM, increase the flow rate and try again. For me, 15LPM will work, but I do better with 25LPM.
ENERGY DRINKS are helpful at holding off an attack and are also used in conjunction with oxygen to abort attacks. The combination of taurine and caffeine is apparently what does the trick. I used to slug a cup of coffee to hold off an attack, but the caffeine/taurine combo works better.
Look into the D3 Regimen. A cluster headache sufferer put this anti-inflammatory regimen together and cured his headaches. Essentially, it is a bunch of vitamins in conjunction with large doses of vitamin D3. This forum has a lot of information about the D3 regimen, and Batch (the creator of the regimen) is a very regular contributor to this board and is always willing to personally help. Many people have a reduction in frequency and severity of their CH using the D3 regimen.
I have those morning hits sometimes too. It sucks to wake up, go through hell, pop an injection, and then have to go about your day. Oxygen has made that bearable. Trex messes with me, makes me drowsy and worthless. Oxygen does none of this. I have also been able to drastically cut back the shadows with oxygen as well. I have recently stopped taking imitrex, and rely solely on O2 and Energy Drinks for aborts. (I still stockpile the injections for a rainy day, however).
Also, there is some evidence that imitrex can make your cycles longer. When things were really bad I would take imitrex tablets as a preventative (I could prevent an attack for 12 hours with this method). It sounds like you may be experiencing something similar.
Most importantly though, we have all been there. You don't have to put how you feel into words. Those feelings of despair are (in a way) a symptom of this condition. You are also suffering from PTSD (we all are). That helpless feeling you get when you got yet another attack is part of it and there are a lot of people on this board who know exactly what you are going through, and are willing to help. This simple fact did not keep a cycle at bay, or help abort any attack. But it gave me some hope that things would get better in the future.
Congratulations on the baby, you have a whole new world to look forward to.