What I am doing wrong? Aliexpress Dropshipping

What I am doing wrong? (about to close the store)
I have been testing products for the past month and a half.
Among the product i found 2 with a PPE <= 0.01 and CPC < $1 (one of the products CPC = $0.30).
Just to make sure visitors are not buying because of the price I checked on Amazon and I keep the same or lower price (20-30% profit).
I designed my ads based on other stores that sell this same product and are successful.
I ran PPE campaigns for $5/day, when I see good engagement and low…

What I am doing wrong? Aliexpress Dropshipping