I am practicing singing on my own for fun. I am trying to practice mixed voice, but I am having hard time distinguishing my head voice, chest voice and mixed voice from each other. From the sources I have read online, I think that mixed voice should have some chest voice and head voice in it. Moreover, If I am using chest voice, I should feel a vibration in my chest. However, I can't feel any vibration in my chest on E4 and higher pitches. Does it mean I am only using my head voice after E4? My range starts from B2 and can go up to G5 with a little bit of straining.
To sum up,
1) should there be vibration in my chest all the way to top of my range? 2) How can I know if I am using mixed voice?