How many channels can I create from a Lightning Node?
Question 1: is there only one wallet inside of this node? If so, is there a way to have additional wallets inside of the same node? Does one use the wallet address when one receives/sends funds (kind of like the way the Bitcoin address to receive/send funds)?


A wallet is not the same thing as an address. A wallet is a collection of addresses and their private keys or scripts. A Lightning Node is also a wallet; there is only one wallet, but there are still multiple addresses and private keys.


  Question 2: Is there a limit to the number of Channels I can create from "My Node"?


In theory, no. In practice, your computer could run out of resources to maintain open connections. Regardless, you can have multiple channels open and it should not be a problem unless you are trying to have hundreds or thousands of channels.


  Question 3: In this case, would I need 6 extra Lightning Network daemons ("lightningd") on my computer?  If so, then would each daemon have to assign a different port address? Is there be a better way to do this? 


No, one daemon can have multiple channels.