Adjusting Sidebar

What theme are you using? Where did you download it from?

I’m using Bridal Pro, from https://studio.thebloggerette.com/

I’m sorry but as you appear to be using a commercial theme, you need to seek support from the theme’s developer/vendor. We do not have access to, nor do we support, commercial products here.

div.title-area {
margin-bottom: -200px;
}

Will do the magic. But as Esmi said if you buy commercial theme they must support it. Go behind them and get it done.