L'opera, mi amore!

Absolutely, you can apply the stuff you've learned from having a healthy relationship with your mom to other relationships. The wonderful thing about emotional honesty and well-being is that it is applicable to every aspect of your life, and every relationship you have. The details are going to vary, depending on the relationship and the person, but I don't have to tell you that good communication and being honest with people will make you feel better about dealing with them.