Overhaul of social media and website

Hello

I have a small capsule fashion business that is online only via Squarespace. I have a variety of social media spaces and selling platforms e.g. shopify, Etsy, instagram etc. The brand is my name and recognisable by my logo (hopefully).

However I do not feel that I have set everything up properly and think that it needs to be organised properly so that Shopify and Facebook link with Instagram so I can sell via that amongst other things. Also, my website may need modification in terms of keywords and SEO overall. But more importantly I would like people to be engaging more with my brand and purchasing the garments more - it is lost in the ether that is the world wide web.

I really am the creative brain behind the business so all the technical elements and social media strategy is like a whole new language that I am struggling to manage so any help would be gratefully received.

Thanks

Tania