I hope im posting in the right place... anazon dropshiping question

Hello all! I wanted to take the leap today and try something small to get my feet wet. I(finally) understand how drop shipping works in theory. I am about to register for a seller acct, for now the .99 per sale option. If I put a business name in, will I be able to change it later when i go "professional"?
Also, how will anyone see my noob store page/items? How does one increase visibility? Is it based off of sales volume, organic views, ect...

Thanks guys and gals, hope i can return the favor soon!

darn it...Cant change that title...