Sleep deprived and anxious

Hey I'm 30 and this is my 1st pregnancy, I'm currently 4wks+5. I've waited for what seems like a life time to get pregnant and now I am I just feel so anxious and I'm not sleeping I'm probably getting about 3hrs sleep a night, waking at 3am being wide awake and to top it all off I had a panic attack yesterday, which I haven't had one for years. Anyone else feeling the same.