It's always great when someone says please and thank you!
Quickly, I noticed that my mother honestly does not understand that my incessant singing is entirely her fault. Listening to childhood stories from my mother always intrigued me and put a smile upon my face. There was one in particular, however, that made me grin every time I thought about it. Once, my mother told me that she sang to her stomach during all nine months of our pregnancy. My mother's casual admission of the truth, that day, was her undoing.
I don't understand this. I don't know if I'm a slow person or what, but I actually had to read this paragraph over like 3 times to finally understand it. I think you should arrange them like this, or I hope my example can give you some sort of idea: after your first sentence, you say that your mother doesn't understand that your outburst of singing and acting all spontaneous was entirely her fault, and then you continue on with the rest of what you were saying.
within me that grew larger as I grew, as well.
The word grew is redundant. Try to find a different replacement.
The butterflies took flight and were soon going to take over. But the butterflies, shortly, went away.The butterflies took flight, and were soon going to take over, but as soon as I stepped onto the floor, closed my eyes and started to sing, I felt like I could fly!!!!
I don't think you should start a sentence with but, that's a no no in the book of grammar. I'm kidding about the flying part, but you should insert some nice phrase that describes how strong and powerful you felt when singing up there since it took all your fears away.
something else took over: my pride's desire for more.
Things need to stop taking over you, you sound possessed lol jk, but I do suggest better word choice and what do you mean by my pride's desire. I don't know if it's just me, but this does not make sense.
n their positive ways
It should be in positive ways.
smile, I love
It should be a period.
Now, my mother is thankful and is the center of my greatest encouragement to do just that.
I don't like that ending at all. It seems out of place, and abrupt. Maybe you should say that you wouldn't have been able to develop this great singing ability of yours without your mother, and she's your greatest encouragement.
I'm totally sorry that this is so long, but honestly when I'm critiquing I just say whatever comes to mind. Hopefully I was helpful!