I don't think there's any issue with that, but the moment, you start using a paypal account used by a fiverr user before, this can get your account restricted
What i think you should do is calm down and wait for sometimes, fiverr doesn't work like magic and not a rich quick scheme. You need to keep editing your gig and always stay online.
If Fiverr bans you permission is required from Customer Support before you open another account. The best plan is to follow the Terms of Service at the bottom of the Fiverr main page so you don't get banned
I support what Venonusa said, you can't just cancel the order but rather let fiverr Customer support handle that for you by removing the orders. I think with that it won't affect your account.