I'd say don't rush. If you're not ready, you're not ready, and the risk of having a bad time in that case is high. Should crap happen you need self confidence in who you are to stand on.
Yesterday I called and ordered a pizza for pickup, placing the order under my female name. The clerk clocked my voice on the phone and kept saying "he's" to me. Not too long ago I would have gotten all down about that but I went out my door wearing my nylons, houndstooth mini skirt & turtle neck sweater and got my pizza. Indeed, two years ago I was walking and saw a glimpse of myself in a mirror and I ran home cause I felt so bad. The difference is confidence. Now I can be ok about all the things that made me feel bad in that mirror.
It's okay to take your time. Just do make progress cause girl, it's really nice to be on this side (though FT for me is Jan 11th, with work on the 14th).