Shopify website edits

My website: www.vgainzfit.com
Access password: rtoffu

I have the following tasks to complete for my website:

Create size selection scroll down for product quick add on the product selection pages. Right now it's just showing qty entry box and add to cart. The best way for this would be

Add all products and images for me. I will supply the images and info for them.

Delete all products that are not mine (I only have 3-4 products on the website that are mine currently) and remove product categories that I will not use.

Add 'Coming soon' or 'No products here yet for this category. Please check back soon or sign up for our newsletter' page to link to for all categories that I don't have products for yet. I only have products for t-shirts (mens), accessories (mens), bottoms and leggings (womens), and sports bras (womens).

Edit various bits of text throughout the website. I will make a list.

Add a cookie tool if I don't already have one.

Test the purchase functionality.

Maybe 2-3 other small tasks. I haven't fully looked over everything yet.