If you want to make serious money with self-publishing, then you need to look upon the whole venture as a business. You need to get into that mindset.

So, tracking your expenses and profits, dealing with marketing, book cover design, manuscript design, and much more. YOU are the marketing department. YOU are the finance department. YOU wear all the hats.

Don't like Facebook Ads? Tough. Put on the big boys shoes and get on with it.