going back to work 😣

i have to go back to work on dec 1st, and im very very grateful for having been able to stay home this long on mat leave im such a nervous wreck about going back. i dont have a daycare spot so my so will watch the boys on the weekends and my.mom will watch my baby once.a week. i know that my baby will be in good hands. im still up alpt at night with lo tho as he wakes to comfort nurse often. he just wants his mama and i know that when i do go to work ill be exhuasted. any suggestions? i did mild sleep.training at 6 months and currently nurse him to sleep and place him in his crib. how can i get him tl self soothe? he does wake at times and self soothe which is definitely nice but im still up 4+ times a night. i brought him in my bed this morning at 4am and he.slept fairly well.but i didn't sleep much at all.