Teamviewer guide / tutorial to customize or create theme on a woocommerce wp site

I am a PHP developer and just started doing some work with wordpress so I am a newbie on the subject. I have created a site using woocommerce and seems to work ok, but I kinda struggle when trying to modify the templates to match something specific. I would like someone to guide me through teamviewer to help me customize a site to look like, eg [login to view URL] so I can get hold of how to modify a template or create it from scratch if necessary. Of course that I don't expect to replicate the whole site but to get an idea of how to layout the homepage with that slider, use mega menu like it's used there, customize the appearance of the shop to look alike etc... I would like to be taken through so I can see how to do it. Another possibility I guess you can just do it via teamviewer and I watch and ask questions as you go. But that would make it faster... I can record the session and get back to it so I don't have to ask you things constantly. Thanks for your help!