I'm almost 40 and I had to move back in with my Mom after my divorce. I have child support to pay and I took a step down at my job to transition so I have no hope of living on my own anytime soon. I've been in transition for about 5 years, out for 2 1/2, and I still get strange looks from Mom. It takes a very long time, frustratingly so, for a Mother to accept a gender incongruous child. I still get referred to as "he" or "him" sometimes and that flies up my ass!

On the other hand, my Mom is helping me pay for GRS, so I know she loves and supports me.
All I can suggest is that you stand firmly in your gender but take a gentle approach when it comes to how you look. I've realized that it's really the physical changes that freak people out... When we come out, folks are hit with your new look like a ton of bricks... Just give it time... In the beginning I found myself watching for reactions but now that I don't look for them I very rarely notice.
I keep precious to me those unique moments when passing and just being accepted as another girl stand out in memory... Like going to the clinic and being asked when my last period was :-) "That would be a neat trick," I respond as I point out the "M" on the form.