is it normal to want to break up with your partner?

Haley • Hey y`all! If you need someone to talk to, I`m your girl! :)
I often think of breaking up with my partner.. should I keep trying? Or leave it alone? I don't know what to do. We rent a house together, we have been together going on 5 years. Do I keep trying?? How do I go on on my own?