I got my first at 31 (33 now). I have 2 now, and have plans for more. I was constantly wishy washy about what I'd want, and decided to just do something simple for my first, I got the outline of the James Webb Space Telescope main mirror on the back of my calf. Figured someday I could either fill it in with some cool space-y patterns, or incorporate it into some other piece. For a while I thought about filling it with parts of the first JWST deep-field shot, and also getting a bee with a space helmet (since the mirrors are hexagonal it kinda looks like a honeycomb, and bees are cool), but I couldn't figure out any way to make a bee look reasonable with a space helmet, so dropped the bee plan lol.
My second, I got a Figbash riding a unicycle above my left kneecap at a halloween flash event on Cape Cod to benefit the Edward Gorey House museum. I love my silly little guy and it's made me want some more silly little guys. Specifically, the "tines" fork driving a racecar from the valentines day Teen Girl Squad episode, and a design I saw for Richard Scarry's Lowly Worm driving his apple car, but the car was a skull instead of an apple. I can't actually find any photos of Figbash healed up, and I can't get to him when wearing pants so I can't take one now, but he looks great and I have no regrets.
It's been 2 years, I have no idea. I definitely know that I didn't consciously choose to start hyperventilating and losing the edges of my vision... It's not like it's anything I worry about now, it was a highly situational kind of anxiety. I know I just need to suck it up and make an appointment.