So, I'm a baritone. I started to work on my voice with Ken less than a month now. When I go from F4 to F#4 (by using vowel modifications) my voice starts to thin and it sounds awful, because it's like I was just poked in a stomach with a knife
The higher I go (to G4 and G#4), the thinner my voice goes and it's sounds more awful. I use abdominal breath, try to keep my throat open, and I don't feel any strain in the larynx. My throat doesn't hurt and don't tires too much. It's just about that awful sound. Like there's no force behind it, just squeezing (it feels like that).
When I sing from D#4 to E4 and F4 - it's okay. Voice goes thinner, but it sounds okay. From F4 to F#4 it just gets worse. What can I do?