How do you know when your voice has changed?!

How do you know when your voice has changed?

I am 13 years old and my voice has been "changing" for about a year now. I understand how, why, and the reasons it changes. I'm just not sure how to tell when my voice has finished changing. Right now, I can still talk in my childhood voice, but I also noticed that about 2 months after my voice started changing, I developed a deeper voice that I could speak in and that it became increasingly difficult to speak in my normal voice. Sometimes it's really hard to talk in my kid voice and it jumps down to the low voice. I just wanted to know if my voice has already changed and I need to start speaking deep, or if I still need to wait, but it's been a year and I am soooo tired of sounding like a little kid. The thing is, my "deep" voice is REALLY deep, like I sound like someone's dad. So I don't want to sound stupid by talking in that voice before I need to. If any guys who have already gone through this would like tell me about your experience, that would be very helpful. :-)

The term of "crackling your voice" or coming from your adult voice to your child voice in sudden conversations still shows that your voice hasnt fully changed. When your voice stops crackling and you normally and cant functionally on a normal basis talk like a kid, your voice has changed! It depends on different people when your voice changes. It can take up to 5 years for some males to have there voice change, and other males there voice can change completly in 3 months! It is all different, so know when you cant talk like a kid, your done with it!