Hi, I am new here. Any good advice please?

First piece of advice: Go through Seller U, then spend at least a week reading the forums. Pay special attention to any threads such as "I've been deactivated", or "Section 3" or "Counterfeit without a test buy". Also find some Nike/LEGO/Adidas threads to read through what happened to the people who didn't bother to do this research.

Then come to the forums with any questions before jumping in. Keep in mind that Amazon is NOT a "learn as you go" place, and one mistake can cost you your account.

As for payouts, there is a Reserve that Amazon will hold on to for a while, especially for new sellers. This is to cover any returns/refunds that may occur. They want to make sure that you are a legitimate and honest business before assuming liability. In the past, there were scammers (mostly overseas) who would set up accounts, sell thousands of items, then pull out the money, all without ever shipping a single item. So the reserve process helps prevent that.

Yes, it's a bit of a cash-flow issue, but plan for it. Don't put all your eggs in one basket (such as the woman who invested $300K in Eclipse Glasses, then wasn't able to get the listing active before the eclipse), and test out things gently. It's probably best for now to fulfill your own items rather than using FBA, but your situation may make that impractical. If you do go FBA, note that it can sometimes take a month before your items become available; and if they don't sell, your removal fees can be substantial.

Good Luck! And keep asking questions.