People keep telling me what to do and I'm tired of it. I'm a grown woman.
That sounds annoying. What are they telling you to do?
They're telling me how to live my life and I'm fighting against it.
There will always be someone who wants to offer their opinions about what you should be doing. You're an adult so you can choose to ignore them if you want.
I'll do what I want. People can talk all they like.
That's a good attitude to have. Those other people aren't living your life, you are. You have to live it the way you want.