Most of our limiting beliefs were created in childhood. A belief is something that you consider to be a fact or is true. The belief is stored in your subconscious mind for later reference checking.
A growth mindset is a mindset that believes that change is possible. Whereas a fixed mindset believes that where you are at is where you will always be, and there is no hope for change. And leads people to feel stuck and discouraged when they run into life challenges or anything else that feels difficult.
Boundaries can best be described as imaginary lines that separate you from other people. These are guidelines, rules, or limits that you create to separate your identity and worth from others. Your boundaries convey how others can treat you. What is okay and what is not okay. And what you will and will not tolerate. And I imagine that there are people you respect because of their ability to set boundaries. They’re not afraid to say no, and they do it in a way that you admire and wish you could do for yourself.