Advice/tips/tricks for an overwhelmed Mom

Jaime • Had our boy/girl twins at 35 weeks on September 30th. They are healthy and perfect!!!
Ah, ladies...I'm one tired and overwhelmed mom. I am sure struggling in a few areas with my 14 week B/G twins. I am afraid I've got some bad habits possibly formed. How do you get them in a nap schedule? Do you put them in the same crib at nap time? What if they both cry? What if one fusses and continually wakes the other? 
I have a very hard time letting them cry. It just breaks my heart but fear that I may be making things harder I the long run? My little boy basically only naps while on me. They are also out of sync. Any help would be so greatly appreciated!!xx