Theme Spun–Put side bar visible on the left or right of Home

I am new to wordpress and I have no idea if I can move my side bar in this theme.
I’m using the Spun, one of the featured themes from wordpress.

So the side bar only appears when I hover my mouse over the “+” sign on the bottom. I was wondering if I can actually move the sidebar to the left or right (maybe if I make columns? Since this theme is one column).

Also on a side note, how can I make the header font bigger?

The website is aspirendream.com