emotional state

I know most of us have changed since our tbi with our emotional state but I was not at all prepared for how drastic mine has changed me. I used to be the most stable person mentally. I could handle anything. Me and my dad were the backbone for my family. Now I'm an emotional roller coaster mess. One minute I'm fine and I can conquer the world, the next, when I find out I might not be able to pay my bills again I'm contemplating suicide, thankfully I snap out of it but what the hell is wrong with me.  I've never been like this.  It's easter for crying out loud and I'm in my room and i can't get out of my own skin.  I mean I'm ok right now but I seriously don't understand what is going on with me.I'm scared cause I have a neuropsych test tomorrow and i'm afraid she's gonna lock me up or something. I pray to god she doesn't ask how my weekend went.I just hope they can find out whats wrong with me, I just feel like when I hit my head some switch went off, cause i'm so different now and I'm so scared I'll never be me again. I don't like this new me, I'm not happy anymore, I'm just so scared, confused, and tired all time.I know it has alot to do with my financial worries, but ugh, I gotta stop typing. I just need to be happy that's all. And I don't know how to be.