How do I [get] the transaction id or transaction hash of a new Segwit wallet
A wallet has many addresses, not just one.
An address can be used in many transactions, not just one.
Therefore an active wallet is usually associated with many transactions, not just one.
Any Blockchain explorer will show a list of transactions that involve a specified address. For example, Blockchair, btscan, blockexplorer.one and blockcypher all show that address bclq9p...7cjn has only been involved in one confirmed transaction f076...1d2e
A Bitcoin wallet will usually also provide a way for someone to view a list of addresses used by that wallet and a list of transactions that have effectively sent money to or from addresses in that list.
I want to send Bitcoin [...] to another wallet
To send money from one wallet to another, ask the receiving wallet for a new address. Use the sending wallet to send money to that new receiving address created by the receiving wallet.
Your sending wallet will find and select money you have previously received into the sending wallet.
Some wallet applications have a feature called "coin control" which might allow you to send amounts of money previously received at your choice of addresses from those under the control of your sending wallet.
