Nice! I am SERIOUSLY impressed that you are writing sonnets at your age!! I am 23 and have not tried one yet!!!
So overall I thought it was quite cute, not the best but still good. I did notice though, that there wasnt a voltaire (twist) in the last 4 lines of your sonnet. I think that is a must in a sonnet. But still though, a great try and for that I'll give you a 5/5!