I prevented my daughters mother from taking her on school walks on "my days"
Do you have a reason for stopping her mother from taking her on school walks?
Yes, I don't want her mother to meet my new family. I think she is a bad influence on her and not want her to influence my family.
You should make a schedule with your daughter's mother to have appropriate boundaries set. This will help you both to know what is okay and not okay when you have your daughter.
The schedule won't matter I have to have a way to be able to prevent her mother from hanging out with my daughter and her friends.
It is normal to have tension after a divorce. You should settle this in a way that will not cause drama and make things uncomfortable for your daughter.