It’s hard. BTDT. I worked with 1 child, and then 2.
First of all, do you have a babysitter? Once you find the right one, you’ll feel a lot better. Make sure that you’re 100% comfortable with her. If you have doubts, you won’t be calm.
You will get used to it as time goes on, but you will be so excited at the end of every day to finally see him! I used to really miss my babies when I left them over!
Is there any way you can cut your hours so you won’t be away from him all day?