Parents and piercings and tattoos

So I️m 18 years old my parents hate piercings they don’t even like ear piercings, and I want something pierced. I have my belly pierced and smiley pierced without them know y’all think i can get away wit a horizontal tongue piercing? I’m that may be far fetch. And I️t’s kind of a childish question to ask. I was also thinking of getting a small tattoo or maybe both. I just feel like it’s my body and I can do what I want to I️t. But they’re African They ain’t going for that