Yesterday, I shattered the ice
To draw water-
No matter, this morning
Frozen just as solid.
–Rengetsu
Imagine that a friend walks up to you and tells you everything about you (incorrectly), pushes you around, and in the process greatly offends you to the point where you doubt your friendship.
Do you do that to your singing voice?
Your voice is the result of actions taken by your body, and that body is always in flux and changing over time. Therefore, literally, you have a slightly new voice every day. You must take time to relearn it.
Your improvement at singing will be short lived if you are getting better at forcing your voice into places that it does not want to go. If you do not break the ice and pay attention to your voice, then you may not have a voice by the end of the day. It will have left you just like Rhett left Scarlet; frankly, my dear, it just won’t give a damn. It saw that you wanted it to be something else, and it cannot do that.
Accept that you are beginning again every day and treat your voice like a precious object. Explore it. Play with it. Listen to it. Challenge it but ultimately accept it for what it is.
Be kind, and your voice will reward you.