Oh honey!
Yeah, it's very disheartening. Voice work is, well, work. It takes
months of experimentation and practice. But it can be done, and without HRT. I didn't start HRT until I found my voice, which took me six months.
Read up on all the exercises that you can do to strengthen your voice. But don't overdo it -- no more than an hour of practice per day. When you're done, do a salt-water gargle (don't swallow) to soothe those vocal cords. It wouldn't hurt to hire a voice coach, either. It's not something that's going to happen overnight. And it's something that has to be approached almost... sideways. Slowly building up your pitch. Working on the cadence and intonation that other women use. Getting your voice out of your chest.
There are all kinds of suggestions in the free
"Finding Your Female Voice" workbook. Do all the exercises -- not all at once, but over time. Because eventually you're going to be using your voice in a very different way for the rest of your life.
Voice work is, I think, the most difficult thing. It takes perseverance and fortitude and courage. So, remember this: finding your voice is like running a marathon. You're not going to run a marathon (26 miles) in one day, not if you've never run before in your life. No, the first day you train for a marathon, you're lucky to get 50 yards. But here's the thing -- now, you've started. You did the work -- you practiced, you listened to the feedback, and you know you have more work to do. You're better off now than you were this morning, even though you feel sore.
Keep training. And never give up.