Analyze and fix shopify sytore

I recently had someone on Fiverr setup my store for me however they did a very shoddy job. I need to have the following things done to get the site up to standard: I have 6 categories and 5 products list under each category. I need to have each of the product lists reviewed and corrected where necessary. Some of the pages have variances with numbers instead of the proper colors and sizes. Some are missing the primary images. Also need the long Aliexpress descriptions replace with 2 - 3 line relevant descriptions. Need to have the scrolling banners on the front page of the store replaced with three more appropriate ecommerce related images. Need to have the Gpay payment option that shows up on the payment pages removed and a Paypal button instead. On front page, need to make sure all icons are clickable where necessary and directing to the appropriate pages. Make sure there are no overlapping icon. Evaluate theme and loading time. Make sure fb pixel and google analytics are setup properly.