Helloween - I want out Cover

Hello,
I always struggled with mid range. I think this demo proves it again.
First half of the song is quiet bad. My current routine is vol 3 only three times a week, as I no longer have the same drive for singing as it used to be unfortunately.

Anyways, since I still sing in a band, I would like to put some effort in, so I would appreciate any suggestion or exercise for imprvoing mid range.
Thank you for reading and listening.
Csesztes