For someone who is only 12 years old, you have a very mature grasp of the issues you are dealing with. And you DO have a great many of those, if I do say so. Way more than you should.
Jumping staright to your question which is "what is my problem," I have to tell you straight out that I don't know, Sweetie. There is so much on your plate, it's difficult to seperate things out and deal with them one by one.
I could look at your issue of being afraid of death, which is a "biggie" even for most grown ups! I have no swift, sure or easy answer for that one. I believe that is something we must all wrestle with on our own...........and it often takes a lifetime to come to peace with the concept.
Being afraid of being alone at night is so normal! When I was your age, I wasn't just afraid, I was out and out terrified! Even now at nearly 60, when my husband is gone, I get totally creeped out being here alone at night.
Worrying about your future at the tender age of 12 is kind of sad. The only "future" you should be worrying about and what is going to happen to you is the next party you're going to and which boy is going to try and kiss you!
Worry about today. The future will take care of itself. Trust me.
You feel misunderstood. What young person doesn't? Even us old folks feel misunderstood at times. Feeling insecure at your age is pretty normal. You say you have a good family and you feel loved, but sadly, your family is going through a divorce which, even though you say it is a "friendly" divorce, still wrecks havoc emotionally for everyone. You feel emotionally overprotected, you want "emotional" space, you're always being questioned about how you feel, if you're OK.........that would feel smothering after time. You say your whole family had ADD, OCD and emotional issues, you cry every day, you say you have a pain in your soul you can't identify, you feel depressed, you think you have emotional problems................Good Lord, child! You are hauling around a burden most adults couldn't handle!
PLEASE talk to your parents about all of this and ask them to take you to your doctor for a very thorough medical check up and tell them that you need/want to see a psychiatrist who deals with young people. You are NOT crazy and that is NOT why I think you need the help of a psychiatrist. You need help to lay your burden down and just be a child again, a child who is growing into young womanhood but you can't do that carrying all this baggage with you!
If you don't think you'd feel comfortable talking to your doctor, just print this post out and hand it to him. He'll know what to do. And on the off chance your parents won't or can't help and your doctor won't either, please don't give up. Go to another adult you trust, an aunt or uncle, your minister/priest/rabbi, your school counselor, your best friends mother...........don't give up until someone listens to you.
I don't want to scare you, but you know this yourself............you need help, we all do at times. Look at all us grown ups on this forum you came to! We ALL needed help, too! And there is no shame or embarrassment in admitting that and reaching out for it.
You took a very brave step writing to us, but now you have to take it to the next level and find the people who can actually do something for you.
Please don't stop until you find them.
And know that we are always here.........anytime you need to talk, we will listen.
Be strong and know that this can and will get better.
Peace
Greenlydia