We are on the same boat. I'm approaching the 5-month mark too, but I am far from frustrated

Of course I would like to see more changes and indeed all the calm and tranquility I got is becoming now a normal feeling, but I am extremely satisfied with all I got until now.
There are times where I just close my eyes and everything feels so right. And everytime I open my eyes and look at the mirror I see how my face changed for the better. I am smiling much more and I am expressing myself much better. I am a different person now, and I couldn't believe that HRT would change me this way. I thought I was only getting, with some luck, boobs and softer features...I was greatly mistaken! ^^
The physical changes are going well. So far I have a 38B cup. I am losing weight and my body is finaly starting to resemble a woman's body...with proper clothing I think I could get a nice shape.
I'm also anxious for the next months. I see that most MtFs have drastical changes on the 7-8 months. I really can't wait, but until there I am going to enjoy the trip!