I am 23 years old and I have done tattoo last year. I will admit that doing the tattoo is a little bit painful and you must have the strength and courage to tolerate the pain. You can engage yourself by doing something else as like listening to music, reading the books or watching anything in your phone. You must calm your mind and stay relaxed. Do not drink alcohol or take drugs while entering the tattoo studio. You should eat enough food or else you might feel weak and drained. Keep yourself hydrated.