Hi bro, I am sorry that I am unable to help as I am a newbie.
I am also trying to use StoreFront to build an e-commerce site.
I see your webpage is totally different from the StoreFront theme that I see.
I searched the web and saw many people saying using a Child Theme to change the way it looked.
Is that what you have done too?
Thanks for your advice and sorry for unable to be of help to you.