Back to Work

I go back to work on June 5, after a week of Jackson being at church camp (and I, home alone with the babe). I am dreading it.  I have had the most amazing maternity leave... all 13 weeks of it. I have loved watching my sweet baby grow and learn new things every day! 

I am so anxious about going back to work. Not that I have been able to get anything done during the day due to our terrible napper, but I don't know when it will all get done.  I have been obsessing about writing everything down and planning when to do it all. I have been making cleaning checklists to make sure everything gets done.  I would hate to spend my weekends cleaning when it's our only time as a family of three.  When do you mamas get everything done?!
I am so anxious about sleep.  Remington is still only sleeping for mostly two hour stretches, which leaves me exhausted.  It's fine when I can nap during the day, but I can't do that at work! It's a plus that I gave up pumping, because at least that's time that I won't have to worry about falling asleep at work!
I'm anxious about work in and of itself! What if I don't remember how to do everything I was doing? How long is it going to take me to re-learn everything? My boss has been so so amazing, and I'd hate to let her down.  
Most of all, I'm anxious about missing time with my baby.  I've spent every day with him for 13 whole weeks, and now I get him in the evenings after I take an hour drive home where I'm sure he will scream the whole way. 
How?  How do you mamas make it work? How do you get everything done at home and at work and still spend all of the time you can with your baby?