baby #2 and FREAKING OUT!!!!

Is anyone else on baby number 2 and literally freaking out worse and worse everyday?
My first just turned 2 in November and I'm 36 weeks with our 2nd boy. My 2 year old is such a handful some days I literally can't even deal with just him. How on earth am I going to also take care of a newborn. Not to mention I have to go back to working full time after being off for just 3 weeks. I'm just so overwhelmed and upset that I can't spend as much time with both of them. 
I was never nervous with my first until I was on my way to the hospital in labor. But I've been so nervous about this one ever since about 20 weeks. I just don't know if I can do it.