Jeez, people. It's apparently all right to have doubts--we are used to telling folks that it's normal--but it's not okay to maybe have doubts (and I'm not saying that this happened), stop EARLY, and say, "Okay, this wasn't what I wanted after all"? Is transition a no-going-back situation--once you've started, you have to continue? We also sometimes tell people that if they're more sure than not, they can start hormones (preferably at a low dose) and then stop if it isn't right for them--just be aware of the risks. Secondo isn't saying, "Gee, I didn't know this might happen!" Far from it.
And, by the way, Secondo was being firm, not rude.
Secondo, I found that a few months in, my voice had changed noticeably to people who were listening for it but not so much for people who weren't. So you may be right that it hasn't changed as much as you think. But still, people say that you sound hoarse and you aren't happy with it. That's significant.
You might need to simply adjust. Lots of women have voices that aren't particularly high, and they don't get to choose. You might pretend that this is simply the hand that nature dealt you. I don't know if that helps.
I have a few other things to say. First, I have heard that some guys who stop T lose a little of their vocal changes. Don't know how true that is. So I would give it a little more time and see. Or go on YouTube and hunt down some of those videos and see how long those guys took to lose some of their vocal depth.
Second, if you want to sound less male/gender neutral, a vocal coach who works specifically with trans women might be worth looking into. I don't think you will get much out of surgery (and it would cost a bundle), but I am not a surgeon. Have you been evaluated by Dr. Thomas, or are you just kicking ideas around?