Hi there,
First off I would not worry about her voice too much:) Second at 8mo she should be just fine with no night feedings, possibly a dream feed if solid food is not a regular in her diet yet. PU/PD at 8mo is going to be a little harder than PU/PD at 4-5mo so it may take a few weeks to get things going in the right direction. I would suggest doing the following:
1)Establish a good bedtime routine and a sleepy phrase ie: "Good night I will see you when the sun comes up" After that you place her in her crib with her paci/lovie or whatever she uses to go to sleep, and leave the room.
2) When she starts to cry/the first time she wakes up pause for a min to make sure that its not a mantra cry, and wait a min to see if she can settle herself. If after a min or so she is still crying and its the "i need you cry" go in and place your hand on her back and say the sleepy phase over again. If this is not working after about 5min or so start using the PU/PD.
3) Remember to leave the room as soon as she is semi calm, and to go back in as soon as she starts crying again(real cry) this will involve A LOT of you going in and out of the room! Depending on her personality it could take up to 10 days to see results but usually you will see a difference in 3-5 days
![Smiley :)](https://smiley.babywhispererforums.com/Smileys/classic/smiley.gif)
Good luck if you have any questions let me know.