Help with Shopify

Hi there

I am launching an e commerce website tomorrow that is hosted on Shopify on the Atlantic Theme. There are a few things I am suck on so what I would like is to speak to someone who is very knowledgable in Shopify e-commerce on the phone so that they can talk me through some of the things that I am trying to do. It is all formatting. For example:

For some of my products where there are 2 size options I can’t figure out where to put the weights
Some of the images are not formatted properly
I need some formatting on my homepage
I have a few general questions

For the right person I would provide my shopify login details so we can talk it over the phone together. I think this phone call will be 30-45 minutes. I am in the US on East Coast time.

I would love to speak to someone ASAP. If not located in the US we can use Whatapp voice call.

Thanks
Rebecca