One strange thing about working on a female voice is that even though it might sound ridiculous to ourselves in our heads, it may actually not be bad. And, even is it starts to sound ridiculous on tape, it may just be an illusion.
After about six months of working on voice, I stopped recording one day and left all the recordings on my phone. About a week later I went back to listen to those recordings, but I wasn't sure which file in the folder was me practicing or not. I just picked one and hit play, and there was this woman talking on the recording. It took me a second or two to figure out that it was ME, and i was floored... why didn't it sound that good to me when I recorded it? Then after a few seconds of me listening to it, and then replaying it, and picking it apart and analyzing it, it started to sound awful again.
Ever since then when I recorded, I would save some, and then forget about them for a couple of weeks.. then I went back later and listened to them to see if I had a different opinion of them. And surprisingly, I often did.
I was being so critical of my voice until I thought for a second that it was someone else's...
Part of the reason may have been all the repetition was just making it all sound so ridiculous. Say anything enough times and that will happen. Like the word "soup". Say it a bunch of times... soup soup soup soup soup soup souuuuuup... Gah! What a weird word soup is!