Pro Tip: Before Sending A Large Sum To A Wallet Address, Send A Test Micro Sum First
Before sending a large amount of money send a micro amount and verify the process worked. Most wallets will save addresses, no after that transaction you can feel safe in avoiding human error. Yes there is a fee to transfer funds but consider it like insurance. If you are going to transfer 10k in Ethereum it might be worth an extra $30 to verify you don't lose it.
I've seen a few posts and comments of people panicking about messing up fund transfers. I don't have a solution to this and I feel for these people. Also do not fault them, it's easy to not be careful and make a mistake.