There are three areas that stand out to me and I feel like until you fix them it will be nearly impossible to get the type of sales you're looking for.
Home Page: Doesn't flow at all or give the visitor a good feeling. I'd set it out like this.
Product Page: The product description is so important. Put more effort into this you can't just use the crap description from ali express. I'd also think about adding the below
Logo: You want to have a nice logo on your website and in the checkout. It doesn't have to be super "fancy" just something nice looking.
I also think there is better free themes and free apps you could be using. Have a look at the articles and videos in the link below for more tips etc.
Overall keep working on this mate. Shopify is all a learning curve. Keep working hard and you will make it work.