Starting from scratch

Hi I’m trying to boost my business and I have no idea where to start. We have been using a google sites website for almost 12 months. I’m thinking of starting fresh but I don’t know where or how to build a website I am willing to learn does anyone have any tips. I wanna optimise the new website but I keep seeing people being like don’t use wix or squarespace or whatever we are a small business so we are trying to just get on the first page locally and would appreciate any advice or help