This is not something new, selling on Amazon FBA have given average folks an opportunity to make a full time income. But there are ups and downs selling on Amazon FBA.
It is not something as simple like buy low and sell high. The competition within Amazon is fierce and brutal. There are sellers who willing to slash prices just to clear up the stocks.
Nowadays a lot of hidden hijackers eyeing on the top sellers and want a slice of the pie. Some newbie jumps into Private level course and bought a large amount of inventory ending up stuck in Amazon FBA storage.
Do your research before going into this business.
My 2 top recommended courses for Amazon FBA