I'm 5'6", 130lbs, small frame, with a 36B/C chest - there's no hiding these things. I don't bind, I just use a sports bra and try to pretend they're pecs. I also try not to look there in the mirror. I forget who, but someone else here said something along the lines of feeling their real chest is underneath the boobs. I'm hoping for top surgery in December, and I'm just trying to cope with the fatty deposits on my chest until then. I'm in the process of coming out at work, eating comfort foods, and being pudgy. After this week, when I'm out to everyone, I want to get back on my low carb paleo diet and get back down to 120lbs and work out. Losing that 10lbs will make things look better, and building muscle will make me feel better.
One other thing that's helping me is looking at photos of me in male clothes where my chest is hidden, and holding that image in my head when I think about how I look. You can also cover the mirror so you can only see yourself from the armpits up.
I hope you will find something that works for you to deal with the dysphoria. Also, keep talking to us here, and I hope you have someone in your life off-line that will listen and let you vent.
Have you talked to your regular physician about this? They might be able to light a fire under someone's ass to get you some help.
-Jay