How long did you wait after getting your first one to get more? And what age were you?

I'm 18, and got my first tattoo about two/three months after my birthday. Felt pretty confident in that decision since I had liked the design for years and it's not related to any sort of intrest I'd really lose at any point, so I figured it was a safe bet for number 1.

I have a list of like 15 other tattoos I want in the future, at least half of which iv wanted for around as long as the one I currently have.

I'm not specifically planning to get a lot of em within the next couple years or anything, but I'm just wondering if it would be stupid to in theorey. I'm not gonna have a whole lot of financial responsibility in college so ill be able save up for shit I want and i am so tempted for it to be tattoos lol.