L.O.
Hi M.,
I have 3 girls ages 19,6,10months. My oldest daughter was 11 when I had my second and she to was great until she was around 13 14. She would lock her out of her room and throw fits if she touched her things. I sat them both down and explained that someday all they will have is each other. I made a schedule up for their sister time 30 minutes a day.
They could bake or play a game read to the little one anything
and long as it was togetherness. I told the oldest one we could compromise if she wanted on the time but if she missed a day she would have to make it up on the weekend. I also made 2 days out of the month girls day out. We all had to go. We would get our nails done shop or whatever for at least 4 hrs.
If she didnt do this she was grounded for a weekend. It worked out great. They are really close now even though My 19yr old has moved out. She comes and visits all the time. She takes her 6 yr old sis out every week and lets her spend the night. She also loves her new baby sis also. I hope this helps let me know please.
L.