My voice is still hit or miss, and toward the end of the day and i'm tired its more miss than hit. I don't have a naturally deep voice so that helps, but it is definitely not female sounding either IMO.
What I have found works well for me is (assuming that you have hit your female voice range before and know what it sounds like) is to have a brief mental routine you can do at any time to pre-raise the voice before you speak. For me it is hearing in my head what I know I can sound like, and then opening my mouth and producing the same sounds. Before I started doing that I'd have trouble hitting the notes that I wanted to hit as soon i started speaking, but ever since i've been doing my mental routine I can hit it every time right off the bat.
Now I need to work on strengthening my voice so that at the end of the day I can still hit those notes without dropping into raspiness and croaking.