Your store looks great, like everyone pointed out! A few things worth fixing though;
-Expensive: As someone said, some of the items are entirely too pricey. $50 for a gym bag for instance. Yikkkess.
-Generic Items : Many of the products on the front page can be bought anywhere. Not a good look if people are looking for original, new stuff. Only interesting products I found were the FIFA keychains, and accessories like wrist wraps/leg warmers/socks, etc.
***That isn't to say you should throw away all of the clothes but try to find gymwear that people would LOVE based on a smaller niche. I.E. maybe a mermaid pushup bra, or gym shorts with a famous gym icon...something lol
-Lack of Product descriptions. You still have the Aliexpress product descriptions imported, and those are really skimp and...bad. Pick 5-10 products that you will promote aggressively for your store and write detailed product descriptions for those. You can find how-to guides on Youtube, the Alidropship blog, anywhere. Product Descriptions are also important because they can help with SEO rankings.
-Upsells/Crossells: This should be a key part of your marketing method. Yet I didn't see any crossells on your site. And I'm not sure if you've added any upsells either. You can use the beta Alidropship Upsells plugin to do this.
-Promotion: Like the user above me stated, promote a single product instead of the entire website (if you haven't already done that). Do you have a social media strategy? Do you have a sales funnel planned that will increase conversions? Since Instagram works for you more than Facebook, find out why your followers are not turning into customers