I have been practicing for the past two days, for a total of at least two hours and my voice still seems like that of a man. It seems pretty hopeless at this point. I have taken all of the bass out of my voice (no vibration in my chest) and I am pretty sure my tone is above the female threshold (120Hz). And it still just sounds like a man trying to sound like a woman. I do not see how much more practicing can help as I have been doing it a long time and still do not sound like a girl. I feel like there's something wrong with my voice that it is impossible to do a female voice. Should I just give up and stick with my man voice, or should I invest in getting voice surgery?