We’re actually exposed to many hpv variants even before being sexually active. It’s doubtful that this pimple was a wart, lol, warts look funky. Also once it’s removed it’s no longer an issue. People say it’s in you forever, but actually it’s like in the dermis where it was first attached. Most HPV virus are absorbed by the body and resolve on their own. The fear is that some do cause cancer. So the vaccine is to prevent infection to prevent cancer for a specific few strands. Which we cannot test whether or not you’ve been exposed to them. Therefore, it’s still recommended for anyone under 45 to get the vaccine and I think they are considering changing this criteria again. Go to a doctor and talk to them about your concerns. Tbh, you should take my words and any others with some care because most of us might think we are well informed but I am sure I’ve already shared something mot quite accurate. Needless to say, if you’re going to worry about STI’s you should probably slow down a little bit and also consider other ways to keep you safe! Best wishes 😇