I wanted to be a singer since I was a little girl but I'm not sure profesinally if I have a voice or not though I think I have a voice is there anything I could do to know if I have a voice:confused:

Do you do muscials or local music stuff? Well if you audition for a musical or something like that you'll probably be able to figure out how good your voice is depending how big your character is

Not sure of your age, but take voice and music lessons. You need to develop your breathing, your tone, and learn to read music.

Well like they alwas say "Never put all your eggs in one basket". Try some singing contests like american idol or something and see how far you go. But don't get your hopes up too high, because you may be good, but not good enough for Simon. Look into other careers too that you would like to do as a back up plan, but anyhow good luck! If you are dying to find out how good you are at singing, record yourself and post it on YouTube.

You could go to the nearest school of modern art and I'm sure they could help you out.:)