That's really tough. And I'm sorry to hear about your grandmother.
I agree pretty much with everyone that's posted so far.
As TamaMum said, about
every teen gets depressed and moody at some point in their lives.
The way you're describing it, I don't think it really relates to puberty though. You get moody during puberty. There is a difference between being very moody and flat out depressed.
Talk to your doctor. I've never personally seen a therapist, but my one friend has. It's helped her a lot. She said it was it helped her see things she always knew, just never completely realized. It can be very benificial.
Try talking to a school counselor as well. They can really help if you don't feel ready to go to a doctor and don't feel comfortable enough talking to your parents.
Depression is a serious mental illness. You should see someone for it, because it's usually not something that can be handled on one's own.
Hopefully everything works out for you.
BTW, I'm glad that you asked for help. Most people don't like to admit to it or tell anyone about it. You're already on your way to recovery.
