Now you can use that to practice zapping.
You can use nostr:npub1getal6ykt05fsz5nqu4uld09nfj3y3qxmv8crys4aeut53unfvlqr80nfm where it’s a wallet that connects to all nostr clients and from which you can top up your wallet.
As for not knowing anything about bitcoin, you can check this library of links, start in chronological order: www.sooly.bio
And read the bitcoin standard book.
Feel free to ask any Q here and you might be amazed with the replies.