I'm a 16-year-old high tenor who recently found my mixed voice (YAY!!) about a week ago. When fully warmed up, I start mixing around Bb4 and go up to Ab5 and twice last week I hit an A5! Unfortunately, I can't do this every day since I don't get to practice much at home.
My mom hates hearing me practice since I'm "too loud". She's always saying I'm screaming but I'm just trying to find that break and sing over it until my mix comes in. I've never found my mix while she's home, but when my parents leave all of a sudden I can belt in the 5th octave like it's nothing.
To warm up, I usually warm up head voice, lower chest voice, head voice again (why not) and then upper chest voice. After that, I try to practice mix, but it does take a few minutes of breaking before it finally comes in. When it comes in, I sound great and feel free and all. Is there a way to warm up so that my mixed voice doesn't need 20 minutes to come in? My parents only give me 30 mins of practice total b/c of homework. All answers are greatly appreciated.