Hi Charrie,
I can relate to quite a bit of your experience. Luckily my wife is more understanding, but would be mortified if I were to transition (and so would I, without the hugely expensive facial surgery required to pass convincingly - I cringe to see an obvious man in dress and cosmetics - blechh!).
If you were young, not deeply religious, found men desirable, with plenty of money and no attachments, I would probably encourage you to go for transition. If you cannot tick all those boxes, then here is my Plan B with preamble:
My philosophy is that life is unfair, and then you die. Much as I regret it, I am an atheist, with no god to blame for my condition.
Like you, I have suffered from low-level depression most of my life due to my GD. That said, the only thing that would make me really satisfied is unachievable. Without pubertal suppression by drugs at age 10, say, followed by a lifetime of peer conditioning by girl friends, it is pretty near impossible, I would say, to really feel like a woman, at least for me. Even if I were to have surgery for my face, my shoulders, rib cage, hips, size of head ratios would all be wrong.
So, if I cannot look like a real woman, I may as well look like an ugly man. After all, many people without a gender problem are born with horrendous disfigurements, but manage to lead a life of sorts, and that's what I'm doing.
The important point is dealing with the GD depression, and I think that's where you will find PM helpful.
I am an atheist, but I wasn't always, and I'm pretty familiar with the bible. I don't think there are any passages there about breast growth on men. After all, gynecomastia can happen by accident. The important point is that it will be a side-effect of taking just about the only thing which makes life acceptable for the likes of you and me.
So, Plan B is that you order PM from Ainterolherbs.com (they work for me). You are unlikely to get much help below 3g/day, but you need to work up slowly.
Start at one 500mg every 3 hours for a maximum of 3 capsules for a week.
Don't take any after 8pm, because some people (I am one) get kidney pains if a dose sits in their bodies overnight.
After the first week increase the dose by one capsule a day for another week or two. You may have to double up on some doses (ie 1g instead of 500mg)
I think you will find that some time before you get to 3g/day, you will experience a moment of epiphany; somehow you will feel relaxed, calm, and able to think clearly.
I find that PM deals with my GD rather like Tylenol (or paracetamol in the UK) deals with my headaches: I still know it's there, but it's kind of muffled and doesn't take over my life.
You should find that you no longer have a desperate urge to present as a female, which is most of the problem. (There is a theory for this, which you can read about by searching for Dr Ann Vitale, either here or on her website... I've copied most of the links.)
Others may disagree with the dosage and recommend a slower ramp up. You have to trade this off against quicker relief. I think PM is pretty safe stuff, but I wouldn't quibble with safety.
Good Luck!
Bryony