Hi guys. I just need your opinion (:

long story short... I work at a preschool FULLTIME, and 5 days a week.. My bestfriend had a baby and she’s doing everything solo due to the fact her baby daddy wanted nothing with his daughter. She just got a second job and asked me to babysit her 11 month old daughter who I love! BUT, weekends are my only day off away from kids, diapers and tantrums😭.. I already told her once nicely that I love her daughter but I don’t wanna babysit for anyone on weeknds .. and she still asks me almost every weekend .. I nicely say no or that I can’t. & it’s not like she’s going to pay me either.. what else can I do to make her understand that I really do not want to babysit.. she will guilt trip me and tell me things like u are supposed to be my bestfriend... I feel like i’m a terrible friend.