See if you can install Wallet of Satoshi app its the quickest and easiest way, just check your App Store, then add the address to your Nostr profile that’s it 

 This??? https://image.nostr.build/258f87974d8b843891cd9c365566206914c0fc9d775f1fc80204840d7b7a4c12.jpg  

 No that's different. Try this.
https://walletofsatoshi.com/ 

 This is also a great way, as long as you are not in the US.