Fix & Optimize Facebook Ads

I’m juggling two Facebook Business Manager accounts—each tied to a separate Shopify store—and a personal profile. Right now nothing talks to each other the way it should: Pixels are duplicated or missing, events are firing inconsistently, and the ad automation I set up is doing more harm than good... (Budget: $250 - $750 USD, Jobs: Digital Marketing, Facebook Ads, Facebook Pixel, Shopify)