You can have more than one account - you do need a different email address for each one.
Unless there is a specific reason for having multiple accounts, you might be better to stick to one account and build up your feedback and customer base.
"There are two ways to be fooled. One is to believe what isn't true; the other is to refuse to believe what is true.”
Søren Kierkegaard, Danish philosopher (1813 - 1855)
