My mother’s Etsy shop and FB ads

I have started running fb ads for my mother's Etsy shop 4 days ago.

A conversion ABO campaign with just 2 $5 ad sets.

In the last 2 days we got 2 orders totalling $100.

The problem is that I can't connect the Pixel with Etsy, so I am running the ads almost blindly.

Ad set A's CPC is ~2$ and B's is ~0.7$ with almost 3x clicks. I can't be sure which ad set got the sales tho.

Is it possible to scale without all the necessary metrics?

Is there a possibility the algorithm will get "confused" and eventually f*ck up the performance because purchases are not tracked?

Please, I really want to help my mother! PM me if you want.