Edited to say that this was posted at the same time as Bosco' was posting, and I hadn't seen responses to you on other threads, such as the one from spiny that Bosco' mentions. Maybe you've heard a lot of this already.
Okay . . . Gotta ask this. First, what do you mean by "micro-dose"? Enough to have any kind of "trip" effects? Do you know the weight of the dose? Did you dose during an attack, near an attack, or at a time when you were having no attack and not expecting one?
Are you using the triptans?
You are getting results. That is definitely what matters. You might be aborting individual attacks (it's just not clear to me). Most people here use psychedelics as a preventive -- to end their CH cycle, not to stop individual attacks. If you read the material at the "New Users -- Please Read Here First" banner at the top of the page, you'll see the method that is used by most people here and strongly recommended -- significant doses (enough for some level of "trip" if you are using psilocybin or LSD) five days apart, with no triptan usage in between. The prevailing wisdom here is that if you take doses every day you will eventually run out of effectiveness because the receptors become blocked, and that if you use triptans, they will block the effects of busting. I underlined prevailing wisdom because, while those beliefs are like "policy" here (because they have proven highly effective over the course of 15 years), there are people who are not so sure. So you can continue what you are doing because it works (unless it's the sleeping outside that works, or your cycle us winding down, or you are early enough in the daily "microdosing" that nothing is blocked), or you can try it the recommended way. In the longer run, you are almost certainly going to want to do it that way. When you get your oxygen set up it will be easier to wait the five days between.
Speaking of your oxygen setup . . . You have a regulator? And what kind of oxygen supplier would send a tank with no mask (and maybe no regulator)? It's okay that you bought your mask -- it's actually cheaper in the long run than "renting" it from the O2 supplier -- but unless your doctor wrote a weird prescription, it's practically malpractice for them not to give you a mask (the standard prescription says "with NRB" (for non-rebreather)). (I will also note that in the excellent video that Bosco' linked you to, the demonstrater is using a "demand valve," which is a different thing than a non-rebreather mask. It doesn't have a reservoir bag on it that empties and refills as you breathe. So you might look at this one, where he's also using a mask that is slightly different from what yours will be, but it has a bag so you can see how that part works: https://www.youtube.com/watch?v=PtFHRIQN17s Did you get big tanks, about three feet tall or more?
I would urge you to read the file I linked you in my previous post. You really want to start the vitamin D regimen. There's a link to it in that file.