I'd like to say its normal, and this is something that most people experience personally, in my opinion you should deal with this on your own, you're figuring out how much you can process and how you can fix your problem.
Yes,i was at that age and i had no one to listen to me.
You should be talking to your parents. They understand a whole lot more about you than you might think.
When it comes to parents, we all have to play the hand we're dealt. But still. they're the most qualified to understand feelings that are unique to you.
Its hard to tell your parents your problems at your age they see you as a child and in their mind what problems could a child have they forget that they were your age once and that what your feeling is very real they probably have things going on as well they love you its just hard trying to communicate between parent and child its hard for them to get down to your level and for you to get on there level your problems are just as real as the next person its not all just in your head try talking to a friend about it they may understand better because there your age
Its normal to be emotional at that age especially because your female
Your at the age of discovery trying to find out who you are your heads going to be a tornado for a couple more years and then start up again in your college years
Not knowing what your problems are I can not say if you are being to emotional or not.
Then no, I do not think you are being to emotional. Seeing that you are not getting much support at home. Have you talked to counselors at school about some of what you are going through? They might be able to support you.