Returning to work 😭😔

I don't return to work until Sept 23rd, but for some reason at 4am, after nursing my baby and snuggling for awhile, I am bawling my eyes out at the thought of leaving him. I hope it's not going to be as bad as I think right now. I feel like a failure as his mom because he will be without me for 8 hours/day 5 days/week. I have a wonderful support system but it's still breaking my heart. He will be nearly 3 months when I go back. I fear that he will forget me when I'm gone all day. Someone just tell me it will be ok. We have a date night planned next Saturday and I'm already feeling guilty for leaving him with my mom for a few hours.