Before hormones, the only thing I was particularly good at was getting angry, so crying was completely out of the question most of the time. I was pretty unhappy about this, because I really did enjoy crying, and I often needed to do so and just couldn't.
Hormones made crying easier. I don't think that my emotions are close to volatile or fragile, but I can cry in intense or sad circumstances. Not easily, but easier.
So, I agree that hormones are likely to help with this problem. Until then, my best wishes... endurance is difficult to come by when one cannot find proper release.