Review Detail of hanplum in The daughter of a wealthy family who had been reborn earned a lot of money

MC is naive and stupid. the story label her as smart, but she is just using her knowledge about who becomes successful from her previous life and invest in those in this life... and I think she had tooo much. The MC acts like a spoiled child, oftentimes the ML have to come and save her just because of her stupid actions and why would she do it in the first place?!?! even a child will know how to not do that.