Hey dude I've been doing Facebook ads for over 5 years, spent 100's of K on them. With affiliate offers they are getting even more though. I've been banned like 20 times. Lol
you need to custom sales funnel usually for FB, regardless of cpc prices. Focus on your cost per conversions.
Unsure which niche you are in but I've run traffic in virtually every niche as we do it for clients via my agency.
Just stay tat away from the hype and earning claims etc