Change the layout of sidebar in sydney theme

Hey there !
I am using Sydney theme to build my website. Its really easy and fun. You guys did a great job.
But i encountered a problem regarding the sidebar in single post page.
Sidebar of single post page
This is how the sidebar is showing on the single post page.
But i want my sidebar to be separate from the post content area as shown in the picture below -
Sidebar from example side
Is there a way to do this ?
I have been trying many methods but nothing worked. Please help me. I’m getting desperate to solve this issue.
Thank you in advance.

Hello @ashknight68,

It looks like this issue requires some coding and testing on different screen resolutions, this goes beyond our support policy. It’s considered advanced customization. As an option, you can find a reputable freelancer on Upwork for this kind of service.

Kind Regards, Roman.

Thank You for your help.