Your wallet is just an encrypted file with a seed phrase or private keys, which is the information needed for creating transactions. It doesn't have a specific address or ID to tell it from other similar wallets. When you are about to make a transaction, your wallet software takes this file, decrypts it for a short period of time, and uses a specific key to authorize the payment. Your wallet can also convert these private keys into human-readable Bitcoin addresses - these are public identifiers used to find other people on the network. To receive a payment, you should visit the "Recieve" tab of your wallet, copy one of the addresses, and send it to whoever wants to give you money. To keep your financial affairs private, you should use a separate address for each incoming payment and never merge coins coming from exchanges and private individuals.