New brand, new account, new product but cannot advertise?

Hi,

I registered my company and my product which is a watch to sell on Amazon. This took a few months.

First when i tried to advertise, i was told id require a profesional account. After paying 40 USD now they are saying there is no buy box.

This has to be the most frustrating place to sell something.

My watch is produced by me and there is no other seller selling it. Its a new account and thus i have 0 sales. How would i ever advertise anything?

Any guidance will be helpful.