What is a weakness of yours?

"My greatest weakness is not being great as saying no. In the past, I've bitten off more than I can chew and struggled with how to communicate 'no'. Since then, I learned that not communicating my limits despite how well I manage my time leads to taking on more than I can handle, which leads me to underperforming. I've gotten a handle on this. But being a people person who is not easily offended and rarely takes things personally, saying no can be hard for me. This trait is a strength and weakness. I'm learning how to strike a harmonious balance between the two."