Guys I messed up

I was way too tired last night and when I'm tired I get stupid, so I decided to give myself a tattoo (no, I'm not kidding). It was a stick and poke tattoo with pen ink on my thigh and it's morning now and I realize.... I goofed up big time. If anyone has any info on how to keep it from getting infected let me know cuz I'm really worried about it.