E-Commerce exportation help/advice

Hey guys!
Im new here.
Im opening a e-commerce to export products from here US to my origin country.

I have build my website alone but i really dont know how to promote the page, i tried facebook and instagram, but im getting less then 40 visitors per day.

Can you guys help me with some advice? Thanks!

suppose that you are targeting the buyer in your country instead of US

You could try SEO or Google AdWords that will deliver a lot higher and more quality traffic.

Yes im targeting the buyer(in brazil). Im only promoting on facebook and instagram, i dont know how to do SEO on my page, Im looking on fiverr for some services, but i dont know if they are good for ecommerce.
Thanks!