While I agree with what Ruta wrote - I think your problem isn't just your advertising medium of choice it's that your website lacks appeal. Your logo takes up half the page and frankly the layout isn't the greatest, your product name still use aliexpress names, your descriptions use ali descriptions, etc. I think you've got more work at hand before you burn any cash on facebook ads.
Think about it from a consumer sense and think truthfully. If you were the consumer, would you buy anything from your own store in it's current state? Do you also think it makes sense for a fashion/apparel/accessories shop to sell drones? When was the last time you walked into a fashion store with the thought: I wonder if they sell drones here?
Just my two cents. Please don't take it personally.
P.S. I am not an asshole, I just write the truth because that's the only way anyone will be successful - by knowing the truth and sometimes the truth hurts.