Would the 30 minute singer help me with mixed voice?

Hello everyone, I am new to the forums. I recently bought the 30 minute signer program and wonder if it would help me out. My range is form a A2-G4 in chest voice, sometimes can go to a G#4 on good days but from there I can’t any higher without straining, I heard you should use mixed voice to reach those higher notes. My goal is to reach up to a C5.
Answers
The vol 5 exercises enable you to expand the notes over which you bridge. That is, to expand your mixed voice.