Thank you for the answer, but I meant that when I make a paper wallet that is connected to my public key, should I always create a new paper wallet when I make some trasnactions?
1. Paper wallet is best used for you to store your bitcoin for a long period of time without touching it. Of course, eventually you will spend it.
2. When you spend your bitcoin on an address, your public key (not bitcoin address) will be known to the world. So, it is better not to re-use your address. For that reason, I would personally prefer to make a new paper wallet for the change (rather than sending the change back to the original address).