need advice

my friends and i drunkenly had the idea to do at home tattoos (we had a tattoo gun and tattoo ink) and i followed normal aftercare that i was told by a tattoo artist from my previous tattoos. this is the first time im experiencing this with the healing process and i want some advice on what to do about it. the tattoo is about 3 and a half weeks old and i noticed some raising a few days ago. now the entire tattoo is raised. it’s not red or itchy at all. what could be going on with it/what should i do? or is this normal and i’m freaking myself out for nothing lol (added photos of what it currently looks like. yes there’s a patch of hair from not shaving over the tat 🙄)