Hi Aleana - just wanted to weigh in as I was in the same situation as your daughter...and opted to go ahead with surgery after a lot of tortured soul-searching. I tried the diet stuff, the progesterone creams, reading Myss and Northrup, journaling about blocked creative energies, etc etc. Years of putting off surgery and watching them grow and grow. I think these solutions may work when you are in your 20's and 30's and you still have time to turn things around. Past a certain point, these fixes are too little too late.
I come from women on both sides of the family with reproductive system problems and unhappy lives, and I think this played a role; I couldn't escape generations of dysfunctional mothering and dysfunctional reproductive systems. Had I known that I needed to be much more proactive when I was much younger, maybe it would have been different. Ultimately, the impact on my lifestyle (anemia, brain fog and fatigue, 25% of my month spent in near-incapacitation) wore me down.
My doc kept saying I'd be more 'comfortable' after surgery; I was offended by this patronizing attitude and felt I was giving in to the western medical juggernaut, but relented. Putting a stop to such a 'cramped' lifestyle won out over all else and I opted for the myomectomy.
In the months prior to surgery I was careful to exercise and eat right to make recovery easier (no booze, no coffee, no sugar, no wheat). It was a tough recovery that took a couple months to get back to normal (it is harder to recover from a major myomectomy than a hysterectomy, because your swiss-cheesed uterus has to knit itself back together). I lost four pants sizes overnight but couldn't sit down or get out of bed by myself for a week. Afterwards, I was determined to make the changes to prevent going through THAT again. But soon the discomfort totally disappeared, I had become so used to decades of pain and inconvenience that I had lost all memory of what it was like to be without it.
This was what it took to make the commitment to change that I should have made 20 years earlier. From what I came to learn about my body at least, is that it is more about controlling estrogen levels than balancing progesterone. This means bigger fixes like limiting alcohol consumption, and increasing exercise above what others might consider normal - lifting weights, and moderate to heavy cardio to bring estrogen down, and keeping body fat levels down. It also meant keeping good digestive health, since if estrogen is not eliminated via normal gut emptying, it gets reabsorbed. One source I read talked about how women with fibroids tend not to be very regular; the idea that gut health would be tied to female hormone balance surprised me. I also started taking iodine supplements a few years after surgery, which the jury is still out on but it seemed to help, the fibroids shrunk, which had initially returned in the year after surgery. There is some research suggesting that women with these problems need more iodine. I am still not sure of the efficacy of this, but so far so good. My recent checkups confirmed that there would be no need for further myomectomies or a hysterectomy from here on out with only a little while to go before menopause, knock wood!
Anyway, good luck to your daughter, whatever she decides to do! I hope my experience can help in some way. At this late phase it is not an easy decision to opt for surgery, but it is not easy to skip it either.