Get a good night sleep.
You need a lot of energy to sit through a tattoo. The more rest you get the night before, the longer you can hold through the pain while getting a tattoo. If you come in exhausted, chances are you won’t be able to handle a full multi-hour session. You want those endorphins and adrenaline to kick in to help block some pain, so make sure you fuel up on sleep to allow that to naturally happen.