Adding my info into my ProBuild Theme for the first time

I am trying to build my first website with Themeforrest Probuild theme which I have loaded on a WordPress. I can’t find getting started videos or any tutorials that can help a new be. I have done some stuff in the past with Wordpress Blogs but I can’t but I can’t seem to get the thing off the ground with a paid for theme.
Do I need to buy a tutorial course?.
Don Parent