Shopify free help

I am looking for a freelancer to provide me with advice on my Shopify store. I'm in need of help with marketing, and I need it now. I use PayPal as one of the main payment systems integrated with my site, as well as Google Analytics and Facebook Ads. With the right help I am confident that I can improve my store. I'm looking for someone who can put their knowledge of Shopify and its services to work in order to provide me with thoughtful and actionable insight. Please ask or take the payment after few sales are initiated. I cannot pay before the services are rendered. I need to bargain for good price after sales of my Shopify store