How can I tell if my Voice is changing? (Teenage Male)?!

Everyone is different but yes, this is about the age when your voice starts to change. My brother is going through this right now. Yes he does sound like he has a cold right now, and sometimes his voice cracks and he even squeaks. If you suspect it, it's probably true. Being sick affects your voice too, of course, but if you are not sick anymore and you still feel something weird in your throat then it is probably changing. Just don't think or worry about it too much. It's natural and usually it's noticeable to you but not enough for you to even realize once your voice has officially changed. If your throat is sore though, keep some cough drops on hand, find a brand and flavor you really like and use them to soothe your throat. Good luck, and happy early birthday!

halo there! it is natural for one's voice to change when he/she reaches puberty.
if you are intent on keeping track of the changes, ask your friends to tune in.