I am in a new role and diving into their website. SEO is terrible. We rarely come up on Google. There are many things I need to update on the site, many things missing but before I start, my main goal is to boost SEO so I want to start there. I am hoping to hear what is the #1 thing to start with, then 2, then 3 etc. I want to maximize my efforts as much as possible and as quickly as possible. Thank you.